Implement C++20 p1424 - 'constexpr' feature macro concerns.

Message ID	a5e8d827-071b-12fc-9272-48a2b08737a4@verizon.net
State	New
Headers	show Return-Path: <gcc-patches-return-507176-incoming=patchwork.ozlabs.org@gcc.gnu.org> DomainKey-Signature: a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:to :from:reply-to:subject:message-id:date:mime-version :content-type; q=dns; s=default; b=gqrbu14aj6pvs0tMgZBlZBMgZJqRB J6FhW0pvDBoMMXLCpPeHiwtaJO3OZ5TfVNmFuVc9sG707anij417E0pnP85UzzFt RH67lqJn5HLYiBNHwK/idPM0libx9fStbuvJtbO+tH4rN03CLYxaJFoShRduA/x7 OpqiBE42lllfiM= Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk Sender: gcc-patches-owner@gcc.gnu.org To: "libstdc++@gcc.gnu.org" <libstdc++@gcc.gnu.org>, Jonathan Wakely <jwakely@redhat.com>, gcc-patches <gcc-patches@gcc.gnu.org>, Jonathan Wakely <jwakely.gcc@gmail.com> From: "Ed Smith-Rowland via gcc-patches" <gcc-patches@gcc.gnu.org> Reply-To: Ed Smith-Rowland <3dw4rd@verizon.net> Subject: Implement C++20 p1424 - 'constexpr' feature macro concerns. Message-ID: <a5e8d827-071b-12fc-9272-48a2b08737a4@verizon.net> Date: Fri, 16 Aug 2019 22:39:03 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------B907DA1488BB03231B5D2312"
Series	Implement C++20 p1424 - 'constexpr' feature macro concerns. \| expand Implement C++20 p1424 - 'constexpr' feature macro concerns.

On 8/20/19 6:14 PM, Jonathan Wakely wrote: > On 16/08/19 22:39 -0400, Ed Smith-Rowland via libstdc++ wrote: >> The latest draft and I guess the above paper changed the macro names >> for the C++20 constexpr lib featues. >> >> __cpp_lib_constexpr_algorithms ->__cpp_lib_constexpr. > > The __cpp_lib_constexpr macro is (now?) for a different feature. > > The proposed resolution for https://cplusplus.github.io/LWG/issue3256 > is to keep the __cpp_lib_constexpr_algorithms name to indicate support > for what is currently described by __cpp_lib_constexpr_swap_algorithms > (and see https://cplusplus.github.io/LWG/issue3257 for another issue > in this area) I'm testing the attached. I changed back to __cpp_lib_constexpr_algorithms from __cpp_lib_constexpr. I dropped__cpp_lib_constexpr_swap_algorithms in favor of __cpp_lib_constexpr_algorithms. I'm leaving __cpp_lib_constexpr alone.?? We don't test this anyway.?? It's sitting in <version>. Is it possible that __cpp_lib_constexpr_char_traits also should be bumped from 201611 to 201806 because of P1032 section 10? Note that I'm not done with this but I'd like to get ahead of the macro issues.?? Presumably, __cpp_lib_constexpr_algorithms gets bumped. Ed 2019-08-22 Edward Smith-Rowland <3dw4rd@verizon.net> Implement C++20 p1424 - 'constexpr' feature macro concerns, Issue 3256 - Feature testing macro for constexpr algorithms, and Issue 3257 - Missing feature testing macro update from P0858. * include/std/version (__cpp_lib_constexpr_algorithms): Bump value. * include/bits/algorithmfwd.h: Ditto. * include/std/utility: Ditto. * testsuite/25_algorithms/constexpr_macro.cc: Ditto. * testsuite/25_algorithms/cpp_lib_constexpr.cc: New check for __cpp_lib_constexpr macro in <algorith>. * testsuite/20_util/exchange/constexpr.cc: Add check for __cpp_lib_constexpr macro in <utility>. * testsuite/25_algorithms/adjacent_find/constexpr.cc: Remove check for __cpp_lib_constexpr_algorithms. * testsuite/25_algorithms/all_of/constexpr.cc: Ditto. * testsuite/25_algorithms/any_of/constexpr.cc: Ditto. * testsuite/25_algorithms/binary_search/constexpr.cc: Ditto. * testsuite/25_algorithms/copy/constexpr.cc: Ditto. * testsuite/25_algorithms/copy_backward/constexpr.cc: Ditto. * testsuite/25_algorithms/copy_if/constexpr.cc: Ditto. * testsuite/25_algorithms/copy_n/constexpr.cc: Ditto. * testsuite/25_algorithms/count/constexpr.cc: Ditto. * testsuite/25_algorithms/count_if/constexpr.cc: Ditto. * testsuite/25_algorithms/equal/constexpr.cc: Ditto. * testsuite/25_algorithms/equal_range/constexpr.cc: Ditto. * testsuite/25_algorithms/fill/constexpr.cc: Ditto. * testsuite/25_algorithms/fill_n/constexpr.cc: Ditto. * testsuite/25_algorithms/find/constexpr.cc: Ditto. * testsuite/25_algorithms/find_end/constexpr.cc: Ditto. * testsuite/25_algorithms/find_first_of/constexpr.cc: Ditto. * testsuite/25_algorithms/find_if/constexpr.cc: Ditto. * testsuite/25_algorithms/find_if_not/constexpr.cc: Ditto. * testsuite/25_algorithms/for_each/constexpr.cc: Ditto. * testsuite/25_algorithms/generate/constexpr.cc: Ditto. * testsuite/25_algorithms/generate_n/constexpr.cc: Ditto. * testsuite/25_algorithms/is_heap/constexpr.cc: Ditto. * testsuite/25_algorithms/is_heap_until/constexpr.cc: Ditto. * testsuite/25_algorithms/is_partitioned/constexpr.cc: Ditto. * testsuite/25_algorithms/is_permutation/constexpr.cc: Ditto. * testsuite/25_algorithms/is_sorted/constexpr.cc: Ditto. * testsuite/25_algorithms/is_sorted_until/constexpr.cc: Ditto. * testsuite/25_algorithms/lexicographical_compare/constexpr.cc: Ditto. * testsuite/25_algorithms/lower_bound/constexpr.cc: Ditto. * testsuite/25_algorithms/merge/constexpr.cc: Ditto. * testsuite/25_algorithms/mismatch/constexpr.cc: Ditto. * testsuite/25_algorithms/none_of/constexpr.cc: Ditto. * testsuite/25_algorithms/partition_copy/constexpr.cc: Ditto. * testsuite/25_algorithms/partition_point/constexpr.cc: Ditto. * testsuite/25_algorithms/remove/constexpr.cc: Ditto. * testsuite/25_algorithms/remove_copy/constexpr.cc: Ditto. * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Ditto. * testsuite/25_algorithms/remove_if/constexpr.cc: Ditto. * testsuite/25_algorithms/replace_copy/constexpr.cc: Ditto. * testsuite/25_algorithms/replace_copy_if/constexpr.cc: Ditto. * testsuite/25_algorithms/replace_if/constexpr.cc: Ditto. * testsuite/25_algorithms/reverse_copy/constexpr.cc: Ditto. * testsuite/25_algorithms/rotate_copy/constexpr.cc: Ditto. * testsuite/25_algorithms/search/constexpr.cc: Ditto. * testsuite/25_algorithms/search_n/constexpr.cc: Ditto. * testsuite/25_algorithms/set_difference/constexpr.cc: Ditto. * testsuite/25_algorithms/set_intersection/constexpr.cc: Ditto. * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc: Ditto. * testsuite/25_algorithms/set_union/constexpr.cc: Ditto. * testsuite/25_algorithms/transform/constexpr.cc: Ditto. * testsuite/25_algorithms/unique/constexpr.cc: Ditto. * testsuite/25_algorithms/unique_copy/constexpr.cc: Ditto. * testsuite/25_algorithms/upper_bound/constexpr.cc: Ditto. Index: include/bits/algorithmfwd.h =================================================================== --- include/bits/algorithmfwd.h (revision 274811) +++ include/bits/algorithmfwd.h (working copy) @@ -192,8 +192,7 @@ // adjacent_find #if __cplusplus > 201703L -# define __cpp_lib_constexpr_algorithms 201711L -# define __cpp_lib_constexpr_swap_algorithms 201806L +# define __cpp_lib_constexpr_algorithms 201806L #endif #if __cplusplus >= 201103L Index: include/bits/stl_iterator.h =================================================================== --- include/bits/stl_iterator.h (revision 274811) +++ include/bits/stl_iterator.h (working copy) @@ -70,7 +70,7 @@ #endif #if __cplusplus > 201402L -# define __cpp_lib_array_constexpr 201603 +# define __cpp_lib_array_constexpr 201803 #endif namespace std _GLIBCXX_VISIBILITY(default) Index: include/std/string_view =================================================================== --- include/std/string_view (revision 274811) +++ include/std/string_view (working copy) @@ -47,7 +47,7 @@ { _GLIBCXX_BEGIN_NAMESPACE_VERSION -#define __cpp_lib_string_view 201603 +#define __cpp_lib_string_view 201803 // Helper for basic_string and basic_string_view members. constexpr size_t Index: include/std/utility =================================================================== --- include/std/utility (revision 274811) +++ include/std/utility (working copy) @@ -281,7 +281,7 @@ #define __cpp_lib_exchange_function 201304 #if __cplusplus > 201703L -# define __cpp_lib_constexpr_algorithms 201711L +# define __cpp_lib_constexpr_algorithms 201806L #endif /// Assign @p __new_val to @p __obj and return its previous value. Index: include/std/version =================================================================== --- include/std/version (revision 274811) +++ include/std/version (working copy) @@ -90,7 +90,7 @@ #define __cpp_lib_addressof_constexpr 201603 #define __cpp_lib_any 201606L #define __cpp_lib_apply 201603 -#define __cpp_lib_array_constexpr 201603 +#define __cpp_lib_array_constexpr 201803 #define __cpp_lib_as_const 201510 #define __cpp_lib_atomic_is_always_lock_free 201603 #define __cpp_lib_bool_constant 201505 @@ -138,7 +138,7 @@ # define __cpp_lib_shared_mutex 201505 #endif #define __cpp_lib_shared_ptr_weak_type 201606 -#define __cpp_lib_string_view 201603 +#define __cpp_lib_string_view 201803 // #define __cpp_lib_to_chars 201611L #define __cpp_lib_type_trait_variable_templates 201510L #define __cpp_lib_uncaught_exceptions 201411L @@ -153,8 +153,8 @@ #define __cpp_lib_atomic_ref 201806L #define __cpp_lib_bind_front 201907L #define __cpp_lib_bounded_array_traits 201902L -#define __cpp_lib_constexpr_algorithms 201711L -#define __cpp_lib_constexpr_swap_algorithms 201806L +#define __cpp_lib_constexpr 201711L +#define __cpp_lib_constexpr_algorithms 201806L #if __cpp_impl_destroying_delete # define __cpp_lib_destroying_delete 201806L #endif Index: testsuite/20_util/exchange/constexpr.cc =================================================================== --- testsuite/20_util/exchange/constexpr.cc (revision 274811) +++ testsuite/20_util/exchange/constexpr.cc (working copy) @@ -20,6 +20,12 @@ #include <utility> +#ifndef __cpp_lib_constexpr_algorithms +# error "Feature-test macro for constexpr algorithms missing" +#elif __cpp_lib_constexpr_algorithms < 201806L +# error "Feature-test macro for constexpr algorithms has wrong value" +#endif + constexpr bool test() { Index: testsuite/25_algorithms/adjacent_find/constexpr.cc =================================================================== --- testsuite/25_algorithms/adjacent_find/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/adjacent_find/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> car{{0, 1, 2, 3, 4, 5, 6, 6, 8, 9, 9, 11}}; constexpr auto out0x = std::adjacent_find(car.begin(), car.end()); Index: testsuite/25_algorithms/all_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/all_of/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/all_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 6> cae{{0, 2, 4, 6, 8, 10}}; constexpr auto out2 = std::all_of(cae.begin(), cae.end(), Index: testsuite/25_algorithms/any_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/any_of/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/any_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/binary_search/constexpr.cc =================================================================== --- testsuite/25_algorithms/binary_search/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/binary_search/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/constexpr_macro.cc =================================================================== --- testsuite/25_algorithms/constexpr_macro.cc (revision 274811) +++ testsuite/25_algorithms/constexpr_macro.cc (working copy) @@ -22,6 +22,6 @@ #ifndef __cpp_lib_constexpr_algorithms # error "Feature-test macro for constexpr algorithms missing in <version>" -#elif __cpp_lib_constexpr_algorithms != 201711L +#elif __cpp_lib_constexpr_algorithms < 201806L # error "Feature-test macro for constexpr algorithms has wrong value in <version>" #endif Index: testsuite/25_algorithms/copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/copy_backward/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy_backward/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/copy_backward/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/copy_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy_if/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/copy_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/copy_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy_n/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/copy_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/count/constexpr.cc =================================================================== --- testsuite/25_algorithms/count/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/count/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/count_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/count_if/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/count_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto out9 = std::count_if(ca0.begin(), ca0.end(), Index: testsuite/25_algorithms/cpp_lib_constexpr.cc =================================================================== --- testsuite/25_algorithms/cpp_lib_constexpr.cc (nonexistent) +++ testsuite/25_algorithms/cpp_lib_constexpr.cc (working copy) @@ -0,0 +1,27 @@ +// Copyright (C) 2019 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +// { dg-options "-std=gnu++2a" } +// { dg-do compile { target c++2a } } + +#include <algorithm> + +#ifndef __cpp_lib_constexpr_algorithms +# error "Feature-test macro for constexpr algorithms missing" +#elif __cpp_lib_constexpr_algorithms < 201806L +# error "Feature-test macro for constexpr algorithms has wrong value" +#endif Index: testsuite/25_algorithms/equal/constexpr.cc =================================================================== --- testsuite/25_algorithms/equal/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/equal/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/equal_range/constexpr.cc =================================================================== --- testsuite/25_algorithms/equal_range/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/equal_range/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/fill/constexpr.cc =================================================================== --- testsuite/25_algorithms/fill/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/fill/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/fill_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/fill_n/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/fill_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/find/constexpr.cc =================================================================== --- testsuite/25_algorithms/find/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/find/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto oute = std::find(ca0.begin(), ca0.end(), 5); Index: testsuite/25_algorithms/find_end/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_end/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/find_end/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/find_first_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_first_of/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/find_first_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr std::array<int, 12> cas{{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}}; Index: testsuite/25_algorithms/find_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_if/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/find_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/find_if_not/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_if_not/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/find_if_not/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto outk = std::find_if_not(ca0.begin(), ca0.end(), Index: testsuite/25_algorithms/for_each/constexpr.cc =================================================================== --- testsuite/25_algorithms/for_each/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/for_each/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/generate/constexpr.cc =================================================================== --- testsuite/25_algorithms/generate/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/generate/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/generate_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/generate_n/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/generate_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/is_heap/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_heap/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/is_heap/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - // heap constexpr std::array<int, 23> ah{{22, Index: testsuite/25_algorithms/is_heap_until/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_heap_until/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/is_heap_until/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - // heap constexpr std::array<int, 23> ahu{{22, Index: testsuite/25_algorithms/is_partitioned/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_partitioned/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/is_partitioned/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/is_permutation/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_permutation/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/is_permutation/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/is_sorted/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_sorted/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/is_sorted/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto outv = std::is_sorted(ca0.begin(), ca0.end()); Index: testsuite/25_algorithms/is_sorted_until/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_sorted_until/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/is_sorted_until/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/lexicographical_compare/constexpr.cc =================================================================== --- testsuite/25_algorithms/lexicographical_compare/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/lexicographical_compare/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/lower_bound/constexpr.cc =================================================================== --- testsuite/25_algorithms/lower_bound/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/lower_bound/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/merge/constexpr.cc =================================================================== --- testsuite/25_algorithms/merge/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/merge/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/mismatch/constexpr.cc =================================================================== --- testsuite/25_algorithms/mismatch/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/mismatch/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/none_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/none_of/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/none_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/partition_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/partition_copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/partition_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/partition_point/constexpr.cc =================================================================== --- testsuite/25_algorithms/partition_point/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/partition_point/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> caeo{{0, 2, 4, 6, 8, 10, 1, 3, 5, 7, 9, 11}}; constexpr bool Index: testsuite/25_algorithms/remove/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/remove/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/remove_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove_copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/remove_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/remove_copy_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove_copy_if/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/remove_copy_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/remove_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove_if/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/remove_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/replace_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/replace_copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/replace_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/replace_copy_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/replace_copy_if/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/replace_copy_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool test() Index: testsuite/25_algorithms/replace_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/replace_if/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/replace_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/reverse_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/reverse_copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/reverse_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/rotate_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/rotate_copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/rotate_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/search/constexpr.cc =================================================================== --- testsuite/25_algorithms/search/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/search/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/search_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/search_n/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/search_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> car{{0, 1, 2, 3, 4, 5, 6, 6, 8, 9, 9, 11}}; constexpr auto outuu = std::search_n(car.begin(), car.end(), 2, 6); Index: testsuite/25_algorithms/set_difference/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_difference/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/set_difference/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/set_intersection/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_intersection/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/set_intersection/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/set_symmetric_difference/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_symmetric_difference/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/set_symmetric_difference/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/set_union/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_union/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/set_union/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/transform/constexpr.cc =================================================================== --- testsuite/25_algorithms/transform/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/transform/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool test() Index: testsuite/25_algorithms/unique/constexpr.cc =================================================================== --- testsuite/25_algorithms/unique/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/unique/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/unique_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/unique_copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/unique_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/upper_bound/constexpr.cc =================================================================== --- testsuite/25_algorithms/upper_bound/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/upper_bound/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/pop_heap/constexpr.cc =================================================================== --- testsuite/25_algorithms/pop_heap/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/pop_heap/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/swap_ranges/constexpr.cc =================================================================== --- testsuite/25_algorithms/swap_ranges/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/swap_ranges/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/partial_sort_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/partial_sort_copy/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/partial_sort_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/sort_heap/constexpr.cc =================================================================== --- testsuite/25_algorithms/sort_heap/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/sort_heap/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/partition/constexpr.cc =================================================================== --- testsuite/25_algorithms/partition/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/partition/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/prev_permutation/constexpr.cc =================================================================== --- testsuite/25_algorithms/prev_permutation/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/prev_permutation/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/next_permutation/constexpr.cc =================================================================== --- testsuite/25_algorithms/next_permutation/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/next_permutation/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/iter_swap/constexpr.cc =================================================================== --- testsuite/25_algorithms/iter_swap/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/iter_swap/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/reverse/constexpr.cc =================================================================== --- testsuite/25_algorithms/reverse/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/reverse/constexpr.cc (working copy) @@ -20,12 +20,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/swap/constexpr.cc =================================================================== --- testsuite/25_algorithms/swap/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/swap/constexpr.cc (working copy) @@ -20,12 +20,6 @@ #include <algorithm> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/make_heap/constexpr.cc =================================================================== --- testsuite/25_algorithms/make_heap/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/make_heap/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/partial_sort/constexpr.cc =================================================================== --- testsuite/25_algorithms/partial_sort/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/partial_sort/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/push_heap/constexpr.cc =================================================================== --- testsuite/25_algorithms/push_heap/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/push_heap/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/rotate/constexpr.cc =================================================================== --- testsuite/25_algorithms/rotate/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/rotate/constexpr.cc (working copy) @@ -20,12 +20,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/nth_element/constexpr.cc =================================================================== --- testsuite/25_algorithms/nth_element/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/nth_element/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/sort/constexpr.cc =================================================================== --- testsuite/25_algorithms/sort/constexpr.cc (revision 274811) +++ testsuite/25_algorithms/sort/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_swap_algorithms -# error "Feature-test macro for constexpr swap algorithms missing" -#elif __cpp_lib_constexpr_swap_algorithms < 201806L -# error "Feature-test macro for constexpr swap algorithms has wrong value" -#endif - constexpr bool test() {

Index: include/bits/algorithmfwd.h =================================================================== --- include/bits/algorithmfwd.h (revision 274488) +++ include/bits/algorithmfwd.h (working copy) @@ -192,7 +192,7 @@ // adjacent_find #if __cplusplus > 201703L -# define __cpp_lib_constexpr_algorithms 201711L +# define __cpp_lib_constexpr 201711L # define __cpp_lib_constexpr_swap_algorithms 201806L #endif Index: include/std/utility =================================================================== --- include/std/utility (revision 274488) +++ include/std/utility (working copy) @@ -281,7 +281,7 @@ #define __cpp_lib_exchange_function 201304 #if __cplusplus > 201703L -# define __cpp_lib_constexpr_algorithms 201711L +# define __cpp_lib_constexpr 201711L #endif /// Assign @p __new_val to @p __obj and return its previous value. Index: include/std/version =================================================================== --- include/std/version (revision 274488) +++ include/std/version (working copy) @@ -153,7 +153,7 @@ #define __cpp_lib_atomic_ref 201806L #define __cpp_lib_bind_front 201907L #define __cpp_lib_bounded_array_traits 201902L -#define __cpp_lib_constexpr_algorithms 201711L +#define __cpp_lib_constexpr 201711L #define __cpp_lib_constexpr_swap_algorithms 201806L #if __cpp_impl_destroying_delete # define __cpp_lib_destroying_delete 201806L Index: testsuite/20_util/exchange/constexpr.cc =================================================================== --- testsuite/20_util/exchange/constexpr.cc (revision 274488) +++ testsuite/20_util/exchange/constexpr.cc (working copy) @@ -20,6 +20,12 @@ #include <utility> +#ifndef __cpp_lib_constexpr +# error "Feature-test macro for constexpr algorithms missing" +#elif __cpp_lib_constexpr < 201711L +# error "Feature-test macro for constexpr algorithms has wrong value" +#endif + constexpr bool test() { Index: testsuite/25_algorithms/adjacent_find/constexpr.cc =================================================================== --- testsuite/25_algorithms/adjacent_find/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/adjacent_find/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> car{{0, 1, 2, 3, 4, 5, 6, 6, 8, 9, 9, 11}}; constexpr auto out0x = std::adjacent_find(car.begin(), car.end()); Index: testsuite/25_algorithms/all_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/all_of/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/all_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 6> cae{{0, 2, 4, 6, 8, 10}}; constexpr auto out2 = std::all_of(cae.begin(), cae.end(), Index: testsuite/25_algorithms/any_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/any_of/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/any_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/binary_search/constexpr.cc =================================================================== --- testsuite/25_algorithms/binary_search/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/binary_search/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/constexpr_macro.cc =================================================================== --- testsuite/25_algorithms/constexpr_macro.cc (revision 274488) +++ testsuite/25_algorithms/constexpr_macro.cc (working copy) @@ -20,8 +20,8 @@ #include <version> -#ifndef __cpp_lib_constexpr_algorithms +#ifndef __cpp_lib_constexpr # error "Feature-test macro for constexpr algorithms missing in <version>" -#elif __cpp_lib_constexpr_algorithms != 201711L +#elif __cpp_lib_constexpr != 201711L # error "Feature-test macro for constexpr algorithms has wrong value in <version>" #endif Index: testsuite/25_algorithms/copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/copy_backward/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy_backward/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/copy_backward/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/copy_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy_if/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/copy_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/copy_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/copy_n/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/copy_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/count/constexpr.cc =================================================================== --- testsuite/25_algorithms/count/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/count/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/count_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/count_if/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/count_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto out9 = std::count_if(ca0.begin(), ca0.end(), Index: testsuite/25_algorithms/cpp_lib_constexpr.cc =================================================================== --- testsuite/25_algorithms/cpp_lib_constexpr.cc (nonexistent) +++ testsuite/25_algorithms/cpp_lib_constexpr.cc (working copy) @@ -0,0 +1,27 @@ +// Copyright (C) 2019 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +// { dg-options "-std=gnu++2a" } +// { dg-do compile { target c++2a } } + +#include <algorithm> + +#ifndef __cpp_lib_constexpr +# error "Feature-test macro for constexpr algorithms missing" +#elif __cpp_lib_constexpr < 201711L +# error "Feature-test macro for constexpr algorithms has wrong value" +#endif Index: testsuite/25_algorithms/equal/constexpr.cc =================================================================== --- testsuite/25_algorithms/equal/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/equal/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/equal_range/constexpr.cc =================================================================== --- testsuite/25_algorithms/equal_range/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/equal_range/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/fill/constexpr.cc =================================================================== --- testsuite/25_algorithms/fill/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/fill/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/fill_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/fill_n/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/fill_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/find/constexpr.cc =================================================================== --- testsuite/25_algorithms/find/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/find/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto oute = std::find(ca0.begin(), ca0.end(), 5); Index: testsuite/25_algorithms/find_end/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_end/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/find_end/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/find_first_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_first_of/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/find_first_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr std::array<int, 12> cas{{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}}; Index: testsuite/25_algorithms/find_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_if/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/find_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/find_if_not/constexpr.cc =================================================================== --- testsuite/25_algorithms/find_if_not/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/find_if_not/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto outk = std::find_if_not(ca0.begin(), ca0.end(), Index: testsuite/25_algorithms/for_each/constexpr.cc =================================================================== --- testsuite/25_algorithms/for_each/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/for_each/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/generate/constexpr.cc =================================================================== --- testsuite/25_algorithms/generate/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/generate/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/generate_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/generate_n/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/generate_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/is_heap/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_heap/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/is_heap/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - // heap constexpr std::array<int, 23> ah{{22, Index: testsuite/25_algorithms/is_heap_until/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_heap_until/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/is_heap_until/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - // heap constexpr std::array<int, 23> ahu{{22, Index: testsuite/25_algorithms/is_partitioned/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_partitioned/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/is_partitioned/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/is_permutation/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_permutation/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/is_permutation/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/is_sorted/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_sorted/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/is_sorted/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr auto outv = std::is_sorted(ca0.begin(), ca0.end()); Index: testsuite/25_algorithms/is_sorted_until/constexpr.cc =================================================================== --- testsuite/25_algorithms/is_sorted_until/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/is_sorted_until/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/lexicographical_compare/constexpr.cc =================================================================== --- testsuite/25_algorithms/lexicographical_compare/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/lexicographical_compare/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/lower_bound/constexpr.cc =================================================================== --- testsuite/25_algorithms/lower_bound/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/lower_bound/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/merge/constexpr.cc =================================================================== --- testsuite/25_algorithms/merge/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/merge/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/mismatch/constexpr.cc =================================================================== --- testsuite/25_algorithms/mismatch/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/mismatch/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/none_of/constexpr.cc =================================================================== --- testsuite/25_algorithms/none_of/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/none_of/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/partition_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/partition_copy/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/partition_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/partition_point/constexpr.cc =================================================================== --- testsuite/25_algorithms/partition_point/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/partition_point/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> caeo{{0, 2, 4, 6, 8, 10, 1, 3, 5, 7, 9, 11}}; constexpr bool Index: testsuite/25_algorithms/remove/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/remove/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/remove_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove_copy/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/remove_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/remove_copy_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove_copy_if/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/remove_copy_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/remove_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/remove_if/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/remove_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/replace_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/replace_copy/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/replace_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool Index: testsuite/25_algorithms/replace_copy_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/replace_copy_if/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/replace_copy_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool test() Index: testsuite/25_algorithms/replace_if/constexpr.cc =================================================================== --- testsuite/25_algorithms/replace_if/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/replace_if/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/reverse_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/reverse_copy/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/reverse_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/rotate_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/rotate_copy/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/rotate_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/search/constexpr.cc =================================================================== --- testsuite/25_algorithms/search/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/search/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/search_n/constexpr.cc =================================================================== --- testsuite/25_algorithms/search_n/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/search_n/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> car{{0, 1, 2, 3, 4, 5, 6, 6, 8, 9, 9, 11}}; constexpr auto outuu = std::search_n(car.begin(), car.end(), 2, 6); Index: testsuite/25_algorithms/set_difference/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_difference/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/set_difference/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/set_intersection/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_intersection/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/set_intersection/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/set_symmetric_difference/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_symmetric_difference/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/set_symmetric_difference/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/set_union/constexpr.cc =================================================================== --- testsuite/25_algorithms/set_union/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/set_union/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/transform/constexpr.cc =================================================================== --- testsuite/25_algorithms/transform/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/transform/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; constexpr bool test() Index: testsuite/25_algorithms/unique/constexpr.cc =================================================================== --- testsuite/25_algorithms/unique/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/unique/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/unique_copy/constexpr.cc =================================================================== --- testsuite/25_algorithms/unique_copy/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/unique_copy/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() { Index: testsuite/25_algorithms/upper_bound/constexpr.cc =================================================================== --- testsuite/25_algorithms/upper_bound/constexpr.cc (revision 274488) +++ testsuite/25_algorithms/upper_bound/constexpr.cc (working copy) @@ -21,12 +21,6 @@ #include <algorithm> #include <array> -#ifndef __cpp_lib_constexpr_algorithms -# error "Feature-test macro for constexpr algorithms missing" -#elif __cpp_lib_constexpr_algorithms < 201711L -# error "Feature-test macro for constexpr algorithms has wrong value" -#endif - constexpr bool test() {

Implement C++20 p1424 - 'constexpr' feature macro concerns.

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