e17ec8e9ba
Implementing the paper
P2291R3 Add Constexpr Modifiers to Functions to_chars and from_chars for
Integral Types in <charconv> Header
Gives issues in language versions prior to C++17. As suggested in
D131855 disable the code prior to C++17. This removes libc++'s
extension.
Reviewed By: ldionne, #libc_vendors, #libc, philnik
Differential Revision: https://reviews.llvm.org/D133216
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
// -*- 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___CHARCONV_CHARS_FORMAT_H
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#define _LIBCPP___CHARCONV_CHARS_FORMAT_H
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#include <__config>
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#include <__utility/to_underlying.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 > 14
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enum class _LIBCPP_ENUM_VIS chars_format
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{
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scientific = 0x1,
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fixed = 0x2,
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hex = 0x4,
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general = fixed | scientific
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};
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inline _LIBCPP_INLINE_VISIBILITY constexpr chars_format
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operator~(chars_format __x) {
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return chars_format(~_VSTD::__to_underlying(__x));
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}
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inline _LIBCPP_INLINE_VISIBILITY constexpr chars_format
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operator&(chars_format __x, chars_format __y) {
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return chars_format(_VSTD::__to_underlying(__x) &
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_VSTD::__to_underlying(__y));
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}
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inline _LIBCPP_INLINE_VISIBILITY constexpr chars_format
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operator|(chars_format __x, chars_format __y) {
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return chars_format(_VSTD::__to_underlying(__x) |
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_VSTD::__to_underlying(__y));
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}
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inline _LIBCPP_INLINE_VISIBILITY constexpr chars_format
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operator^(chars_format __x, chars_format __y) {
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return chars_format(_VSTD::__to_underlying(__x) ^
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_VSTD::__to_underlying(__y));
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 chars_format&
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operator&=(chars_format& __x, chars_format __y) {
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__x = __x & __y;
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return __x;
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 chars_format&
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operator|=(chars_format& __x, chars_format __y) {
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__x = __x | __y;
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return __x;
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 chars_format&
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operator^=(chars_format& __x, chars_format __y) {
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__x = __x ^ __y;
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return __x;
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}
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#endif // _LIBCPP_STD_VER > 14
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___CHARCONV_CHARS_FORMAT_H
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