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5d4439cc3e
release/17.x branch, commit 8f4dd44097c9ae25dd203d5ac87f3b48f854bba8 This adds the flag `-D_LIBCPP_PSTL_CPU_BACKEND_SERIAL`. A future enhancement could possibly pass something different if there is a compelling parallel implementation. That libdispatch one might be worth looking into.
52 lines
1.7 KiB
C++
Vendored
52 lines
1.7 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___CHRONO_STATICALLY_WIDEN_H
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#define _LIBCPP___CHRONO_STATICALLY_WIDEN_H
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// Implements the STATICALLY-WIDEN exposition-only function. ([time.general]/2)
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#include <__concepts/same_as.h>
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#include <__config>
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#include <__format/concepts.h>
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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 >= 20
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# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
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template <__fmt_char_type _CharT>
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_LIBCPP_HIDE_FROM_ABI constexpr const _CharT* __statically_widen(const char* __str, const wchar_t* __wstr) {
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if constexpr (same_as<_CharT, char>)
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return __str;
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else
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return __wstr;
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}
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# define _LIBCPP_STATICALLY_WIDEN(_CharT, __str) ::std::__statically_widen<_CharT>(__str, L##__str)
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# else // _LIBCPP_HAS_NO_WIDE_CHARACTERS
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// Without this indirection the unit test test/libcxx/modules_include.sh.cpp
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// fails for the CI build "No wide characters". This seems like a bug.
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// TODO FMT investigate why this is needed.
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template <__fmt_char_type _CharT>
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_LIBCPP_HIDE_FROM_ABI constexpr const _CharT* __statically_widen(const char* __str) {
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return __str;
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}
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# define _LIBCPP_STATICALLY_WIDEN(_CharT, __str) ::std::__statically_widen<_CharT>(__str)
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# endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
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#endif //_LIBCPP_STD_VER >= 20
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___CHRONO_STATICALLY_WIDEN_H
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