06ee65af9e
release/18.x branch, commit 78b99c73ee4b96fe9ce0e294d4632326afb2db42 This adds the flag `-D_LIBCPP_HARDENING_MODE` which is determined based on the Zig optimization mode. This commit also fixes libunwind, libcxx, and libcxxabi to properly report sub compilation errors.
60 lines
1.8 KiB
C++
Vendored
60 lines
1.8 KiB
C++
Vendored
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ITERATOR_SIZE_H
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#define _LIBCPP___ITERATOR_SIZE_H
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#include <__config>
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#include <__type_traits/common_type.h>
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#include <__type_traits/make_signed.h>
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#include <cstddef>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER >= 17
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template <class _Cont>
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_LIBCPP_HIDE_FROM_ABI constexpr auto size(const _Cont& __c) _NOEXCEPT_(noexcept(__c.size())) -> decltype(__c.size()) {
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return __c.size();
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}
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template <class _Tp, size_t _Sz>
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_LIBCPP_HIDE_FROM_ABI constexpr size_t size(const _Tp (&)[_Sz]) noexcept {
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return _Sz;
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}
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# if _LIBCPP_STD_VER >= 20
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template <class _Cont>
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_LIBCPP_HIDE_FROM_ABI constexpr auto ssize(const _Cont& __c)
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_NOEXCEPT_(noexcept(static_cast<common_type_t<ptrdiff_t, make_signed_t<decltype(__c.size())>>>(__c.size())))
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-> common_type_t<ptrdiff_t, make_signed_t<decltype(__c.size())>> {
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return static_cast<common_type_t<ptrdiff_t, make_signed_t<decltype(__c.size())>>>(__c.size());
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}
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// GCC complains about the implicit conversion from ptrdiff_t to size_t in
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// the array bound.
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_LIBCPP_DIAGNOSTIC_PUSH
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_LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wsign-conversion")
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template <class _Tp, ptrdiff_t _Sz>
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_LIBCPP_HIDE_FROM_ABI constexpr ptrdiff_t ssize(const _Tp (&)[_Sz]) noexcept {
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return _Sz;
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}
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_LIBCPP_DIAGNOSTIC_POP
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# endif
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#endif // _LIBCPP_STD_VER >= 17
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ITERATOR_SIZE_H
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