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Implement C++20 P1023 for __debug::array

Message ID a949caa9-3f0a-f4cb-a143-0348a32fed59@gmail.com
State New
Headers show
Series Implement C++20 P1023 for __debug::array | expand

Commit Message

François Dumont Sept. 30, 2019, 8:31 p.m. UTC 
This is a missing part of C++20 P1023 for __debug::array.

     Implement C++20 p1023 - constexpr comparison operators for 
__debug::array.
     * include/debug/array: Add C++20 constexpr to comparison operators.
     * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc: Adapt
     dg-error line numbers.
     * testsuite/23_containers/array/tuple_interface/
     tuple_element_debug_neg.cc: Likewise.


Tested under Linux x86_64 normal and debug modes.

François

Comments

Jonathan Wakely Oct. 1, 2019, 9:08 a.m. UTC | #1 
On 30/09/19 22:31 +0200, François Dumont wrote:
>This is a missing part of C++20 P1023 for __debug::array.
>
>    Implement C++20 p1023 - constexpr comparison operators for 
>__debug::array.
>    * include/debug/array: Add C++20 constexpr to comparison operators.
>    * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc: Adapt
>    dg-error line numbers.
>    * testsuite/23_containers/array/tuple_interface/
>    tuple_element_debug_neg.cc: Likewise.
>
>
>Tested under Linux x86_64 normal and debug modes.

Thanks.
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Patch

diff --git a/libstdc++-v3/include/debug/array b/libstdc++-v3/include/debug/array
index 2f8eb842eb8..5566a087f9a 100644
--- a/libstdc++-v3/include/debug/array
+++ b/libstdc++-v3/include/debug/array
@@ -234,16 +234,19 @@  namespace __debug
 
   // Array comparisons.
   template<typename _Tp, std::size_t _Nm>
+    _GLIBCXX20_CONSTEXPR
     inline bool
     operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
     { return std::equal(__one.begin(), __one.end(), __two.begin()); }
 
   template<typename _Tp, std::size_t _Nm>
+    _GLIBCXX20_CONSTEXPR
     inline bool
     operator!=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
     { return !(__one == __two); }
 
   template<typename _Tp, std::size_t _Nm>
+    _GLIBCXX20_CONSTEXPR
     inline bool
     operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
     {
@@ -252,16 +255,19 @@  namespace __debug
     }
 
   template<typename _Tp, std::size_t _Nm>
+    _GLIBCXX20_CONSTEXPR
     inline bool
     operator>(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
     { return __two < __one; }
 
   template<typename _Tp, std::size_t _Nm>
+    _GLIBCXX20_CONSTEXPR
     inline bool
     operator<=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
     { return !(__one > __two); }
 
   template<typename _Tp, std::size_t _Nm>
+    _GLIBCXX20_CONSTEXPR
     inline bool
     operator>=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
     { return !(__one < __two); }
diff --git a/libstdc++-v3/testsuite/23_containers/array/tuple_interface/get_debug_neg.cc b/libstdc++-v3/testsuite/23_containers/array/tuple_interface/get_debug_neg.cc
index f9880b4b0f5..3c60a435491 100644
--- a/libstdc++-v3/testsuite/23_containers/array/tuple_interface/get_debug_neg.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/tuple_interface/get_debug_neg.cc
@@ -27,6 +27,6 @@  int n1 = std::get<1>(a);
 int n2 = std::get<1>(std::move(a));
 int n3 = std::get<1>(ca);
 
-// { dg-error "static assertion failed" "" { target *-*-* } 288 }
-// { dg-error "static assertion failed" "" { target *-*-* } 297 }
-// { dg-error "static assertion failed" "" { target *-*-* } 305 }
+// { dg-error "static assertion failed" "" { target *-*-* } 294 }
+// { dg-error "static assertion failed" "" { target *-*-* } 303 }
+// { dg-error "static assertion failed" "" { target *-*-* } 311 }
diff --git a/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc b/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc
index 10b1681c0c4..a6b44eb57fe 100644
--- a/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc
@@ -22,4 +22,4 @@ 
 
 typedef std::tuple_element<1, std::array<int, 1>>::type type;
 
-// { dg-error "static assertion failed" "" { target *-*-* } 331 }
+// { dg-error "static assertion failed" "" { target *-*-* } 376 }