| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___CHRONO_STATICALLY_WIDEN_H |
| #define _LIBCPP___CHRONO_STATICALLY_WIDEN_H |
| |
| // Implements the STATICALLY-WIDEN exposition-only function. ([time.general]/2) |
| |
| #include <__concepts/same_as.h> |
| #include <__config> |
| #include <__format/concepts.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if _LIBCPP_STD_VER > 17 |
| |
| # ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS |
| template <__fmt_char_type _CharT> |
| consteval const _CharT* __statically_widen(const char* __str, const wchar_t* __wstr) { |
| if constexpr (same_as<_CharT, char>) |
| return __str; |
| else |
| return __wstr; |
| } |
| # define _LIBCPP_STATICALLY_WIDEN(_CharT, __str) ::std::__statically_widen<_CharT>(__str, L##__str) |
| # else // _LIBCPP_HAS_NO_WIDE_CHARACTERS |
| |
| // Without this indirection the unit test test/libcxx/modules_include.sh.cpp |
| // fails for the CI build "No wide characters". This seems like a bug. |
| // TODO FMT investigate why this is needed. |
| template <__fmt_char_type _CharT> |
| consteval const _CharT* __statically_widen(const char* __str) { |
| return __str; |
| } |
| # define _LIBCPP_STATICALLY_WIDEN(_CharT, __str) ::std::__statically_widen<_CharT>(__str) |
| # endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS |
| |
| #endif //if _LIBCPP_STD_VER > 17 |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___CHRONO_STATICALLY_WIDEN_H |
