| Message ID | CACJEya+wn7RxPr5t=MYr5Xedh7q4q=CfwiA=qPP7mk4uRq7zNw@mail.gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | libstdc++: Add missing constexpr specifier and function overloads | expand |
On 23/07/23 20:28 -0700, Deev Patel wrote: >Hi, > >A couple of virtual functions in the libstdc++ format header are marked >constexpr in the base class, but not in the derived class. This was causing >build failures when trying to compile latest gcc libstd with clang 16 using >c++20. Adding the constexpr specifier resolves the issue. > >2023-07-23 Deev Patel <pateldeev@nevada.unr.edu> > > * include/std/format: Add missing constexpr specifiers on function overloads Thanks for the patch, I'll test and push it. N.B. libstdc++ patches should be CC'd to the libstdc++ mailing list, or I won't see them (and rely on somebody bringing it to my attention). >--- > libstdc++-v3/include/std/format | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > >diff --git a/libstdc++-v3/include/std/format b/libstdc++-v3/include/std/format >index 9710bff3c03..0c6069b2681 100644 >--- a/libstdc++-v3/include/std/format >+++ b/libstdc++-v3/include/std/format >@@ -3554,14 +3554,14 @@ namespace __format > > using iterator = typename _Scanner<_CharT>::iterator; > >- void >+ constexpr void > _M_on_chars(iterator __last) override > { > basic_string_view<_CharT> __str(this->begin(), __last); > _M_fc.advance_to(__format::__write(_M_fc.out(), __str)); > } > >- void >+ constexpr void > _M_format_arg(size_t __id) override > { > using _Context = basic_format_context<_Out, _CharT>;
diff --git a/libstdc++-v3/include/std/format b/libstdc++-v3/include/std/format index 9710bff3c03..0c6069b2681 100644 --- a/libstdc++-v3/include/std/format +++ b/libstdc++-v3/include/std/format @@ -3554,14 +3554,14 @@ namespace __format using iterator = typename _Scanner<_CharT>::iterator; - void + constexpr void _M_on_chars(iterator __last) override { basic_string_view<_CharT> __str(this->begin(), __last); _M_fc.advance_to(__format::__write(_M_fc.out(), __str)); } - void + constexpr void _M_format_arg(size_t __id) override { using _Context = basic_format_context<_Out, _CharT>;
Hi, A couple of virtual functions in the libstdc++ format header are marked constexpr in the base class, but not in the derived class. This was causing build failures when trying to compile latest gcc libstd with clang 16 using c++20. Adding the constexpr specifier resolves the issue. 2023-07-23 Deev Patel <pateldeev@nevada.unr.edu> * include/std/format: Add missing constexpr specifiers on function overloads From ac34afa1109b4c82e5cc377f49abf55422b89529 Mon Sep 17 00:00:00 2001 From: Deev Patel <pateldeev@nevada.unr.edu> Date: Sun, 23 Jul 2023 20:08:46 -0700 Subject: [PATCH] [libstdc++] Add missing constexpr specifiers on function overloads --- libstdc++-v3/include/std/format | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)