xref: /freebsd-src/contrib/llvm-project/libcxx/src/include/ryu/d2s.h (revision 0eae32dcef82f6f06de6419a0d623d7def0cc8f6)
1*0eae32dcSDimitry Andric //===----------------------------------------------------------------------===//
2*0eae32dcSDimitry Andric //
3*0eae32dcSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*0eae32dcSDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
5*0eae32dcSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*0eae32dcSDimitry Andric //
7*0eae32dcSDimitry Andric //===----------------------------------------------------------------------===//
8*0eae32dcSDimitry Andric 
9*0eae32dcSDimitry Andric // Copyright (c) Microsoft Corporation.
10*0eae32dcSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
11*0eae32dcSDimitry Andric 
12*0eae32dcSDimitry Andric // Copyright 2018 Ulf Adams
13*0eae32dcSDimitry Andric // Copyright (c) Microsoft Corporation. All rights reserved.
14*0eae32dcSDimitry Andric 
15*0eae32dcSDimitry Andric // Boost Software License - Version 1.0 - August 17th, 2003
16*0eae32dcSDimitry Andric 
17*0eae32dcSDimitry Andric // Permission is hereby granted, free of charge, to any person or organization
18*0eae32dcSDimitry Andric // obtaining a copy of the software and accompanying documentation covered by
19*0eae32dcSDimitry Andric // this license (the "Software") to use, reproduce, display, distribute,
20*0eae32dcSDimitry Andric // execute, and transmit the Software, and to prepare derivative works of the
21*0eae32dcSDimitry Andric // Software, and to permit third-parties to whom the Software is furnished to
22*0eae32dcSDimitry Andric // do so, all subject to the following:
23*0eae32dcSDimitry Andric 
24*0eae32dcSDimitry Andric // The copyright notices in the Software and this entire statement, including
25*0eae32dcSDimitry Andric // the above license grant, this restriction and the following disclaimer,
26*0eae32dcSDimitry Andric // must be included in all copies of the Software, in whole or in part, and
27*0eae32dcSDimitry Andric // all derivative works of the Software, unless such copies or derivative
28*0eae32dcSDimitry Andric // works are solely in the form of machine-executable object code generated by
29*0eae32dcSDimitry Andric // a source language processor.
30*0eae32dcSDimitry Andric 
31*0eae32dcSDimitry Andric // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
32*0eae32dcSDimitry Andric // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
33*0eae32dcSDimitry Andric // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
34*0eae32dcSDimitry Andric // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
35*0eae32dcSDimitry Andric // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
36*0eae32dcSDimitry Andric // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
37*0eae32dcSDimitry Andric // DEALINGS IN THE SOFTWARE.
38*0eae32dcSDimitry Andric 
39*0eae32dcSDimitry Andric #ifndef _LIBCPP_SRC_INCLUDE_RYU_DS2_H
40*0eae32dcSDimitry Andric #define _LIBCPP_SRC_INCLUDE_RYU_DS2_H
41*0eae32dcSDimitry Andric 
42*0eae32dcSDimitry Andric // Avoid formatting to keep the changes with the original code minimal.
43*0eae32dcSDimitry Andric // clang-format off
44*0eae32dcSDimitry Andric 
45*0eae32dcSDimitry Andric #include "__config"
46*0eae32dcSDimitry Andric 
47*0eae32dcSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD
48*0eae32dcSDimitry Andric 
49*0eae32dcSDimitry Andric inline constexpr int __DOUBLE_MANTISSA_BITS = 52;
50*0eae32dcSDimitry Andric inline constexpr int __DOUBLE_EXPONENT_BITS = 11;
51*0eae32dcSDimitry Andric inline constexpr int __DOUBLE_BIAS = 1023;
52*0eae32dcSDimitry Andric 
53*0eae32dcSDimitry Andric inline constexpr int __DOUBLE_POW5_INV_BITCOUNT = 122;
54*0eae32dcSDimitry Andric inline constexpr int __DOUBLE_POW5_BITCOUNT = 121;
55*0eae32dcSDimitry Andric 
56*0eae32dcSDimitry Andric [[nodiscard]] to_chars_result __d2s_buffered_n(char* const _First, char* const _Last, const double __f, const chars_format _Fmt);
57*0eae32dcSDimitry Andric 
58*0eae32dcSDimitry Andric _LIBCPP_END_NAMESPACE_STD
59*0eae32dcSDimitry Andric 
60*0eae32dcSDimitry Andric // clang-format on
61*0eae32dcSDimitry Andric 
62*0eae32dcSDimitry Andric #endif // _LIBCPP_SRC_INCLUDE_RYU_DS2_H
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