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From: Jonathan Wakely <redi@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r12-10273] libstdc++: Fix -Wsystem-headers warnings Date: Mon, 18 Mar 2024 14:07:58 +0000 (GMT) [thread overview] Message-ID: <20240318140758.B12903858005@sourceware.org> (raw) https://gcc.gnu.org/g:2d174d4181896129d465cbf42dc454f4f906892b commit r12-10273-g2d174d4181896129d465cbf42dc454f4f906892b Author: Jonathan Wakely <jwakely@redhat.com> Date: Sat Nov 5 12:35:55 2022 +0000 libstdc++: Fix -Wsystem-headers warnings Fix some problems noticed with -Wsystem-headers. libstdc++-v3/ChangeLog: * include/bits/stl_tempbuf.h (_Temporary_buffer): Disable warnings about get_temporary_buffer being deprecated. * include/ext/functional (mem_fun1, mem_fun1_ref): Disable warnings about mem_fun1_t, const_mem_fun1_t, mem_fun1_ref_t and const_mem_fun1_ref_t being deprecated. * include/std/spanstream (basic_spanbuf::setbuf): Add assertion and adjust to avoid narrowing warning. * libsupc++/exception_ptr.h [!__cpp_rtti && !__cpp_exceptions] (make_exception_ptr): Add missing inline specifier. (cherry picked from commit 8f6d25f19bae521c3d028bcdcd69019540b8c3b9) Diff: --- libstdc++-v3/include/bits/stl_tempbuf.h | 3 +++ libstdc++-v3/include/ext/functional | 4 ++-- libstdc++-v3/include/std/spanstream | 3 ++- libstdc++-v3/libsupc++/exception_ptr.h | 2 +- 4 files changed, 8 insertions(+), 4 deletions(-) diff --git a/libstdc++-v3/include/bits/stl_tempbuf.h b/libstdc++-v3/include/bits/stl_tempbuf.h index db7cdb14ca9..f8323d4ab71 100644 --- a/libstdc++-v3/include/bits/stl_tempbuf.h +++ b/libstdc++-v3/include/bits/stl_tempbuf.h @@ -254,6 +254,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION __ucr(__first, __last, __seed); } +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" template<typename _ForwardIterator, typename _Tp> _Temporary_buffer<_ForwardIterator, _Tp>:: _Temporary_buffer(_ForwardIterator __seed, size_type __original_len) @@ -278,6 +280,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION } } } +#pragma GCC diagnostic pop _GLIBCXX_END_NAMESPACE_VERSION } // namespace diff --git a/libstdc++-v3/include/ext/functional b/libstdc++-v3/include/ext/functional index 19cd8d5b563..11c2de1294b 100644 --- a/libstdc++-v3/include/ext/functional +++ b/libstdc++-v3/include/ext/functional @@ -394,8 +394,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { _M_initialize(161803398u); } }; -#pragma GCC diagnostic pop - // Mem_fun adaptor helper functions mem_fun1 and mem_fun1_ref, // provided for backward compatibility, they are no longer part of // the C++ standard. @@ -420,6 +418,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION mem_fun1_ref(_Ret (_Tp::*__f)(_Arg) const) { return std::const_mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); } +#pragma GCC diagnostic pop + _GLIBCXX_END_NAMESPACE_VERSION } // namespace diff --git a/libstdc++-v3/include/std/spanstream b/libstdc++-v3/include/std/spanstream index 5855b286efe..8fd74b8f9cb 100644 --- a/libstdc++-v3/include/std/spanstream +++ b/libstdc++-v3/include/std/spanstream @@ -134,7 +134,8 @@ template<typename _CharT, typename _Traits> basic_streambuf<_CharT, _Traits>* setbuf(_CharT* __s, streamsize __n) override { - span({__s, __n}); + __glibcxx_assert(__n >= 0); + this->span(std::span<_CharT>(__s, __n)); return this; } diff --git a/libstdc++-v3/libsupc++/exception_ptr.h b/libstdc++-v3/libsupc++/exception_ptr.h index 6433f059e9c..07e456237db 100644 --- a/libstdc++-v3/libsupc++/exception_ptr.h +++ b/libstdc++-v3/libsupc++/exception_ptr.h @@ -271,7 +271,7 @@ namespace std // instead of a working one compiled with RTTI and/or exceptions enabled. template<typename _Ex> __attribute__ ((__always_inline__)) - exception_ptr + inline exception_ptr make_exception_ptr(_Ex) _GLIBCXX_USE_NOEXCEPT { return exception_ptr(); } #endif
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