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1 // -*- C++ -*-
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2 //===----------------------------------------------------------------------===//
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3 //
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4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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5 // See https://llvm.org/LICENSE.txt for license information.
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6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #ifndef _LIBCPP_UCHAR_H
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11 #define _LIBCPP_UCHAR_H
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12
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13 /*
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14 uchar.h synopsis // since C++11
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15
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16 Macros:
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17
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18 __STDC_UTF_16__
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19 __STDC_UTF_32__
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20
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21 Types:
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22
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23 mbstate_t
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24 size_t
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25
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26 size_t mbrtoc8(char8_t* pc8, const char* s, size_t n, mbstate_t* ps); // since C++20
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27 size_t c8rtomb(char* s, char8_t c8, mbstate_t* ps); // since C++20
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28 size_t mbrtoc16(char16_t* pc16, const char* s, size_t n, mbstate_t* ps);
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29 size_t c16rtomb(char* s, char16_t c16, mbstate_t* ps);
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30 size_t mbrtoc32(char32_t* pc32, const char* s, size_t n, mbstate_t* ps);
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31 size_t c32rtomb(char* s, char32_t c32, mbstate_t* ps);
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32
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33 */
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34
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35 #include <__config>
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36
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37 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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38 # pragma GCC system_header
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39 #endif
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40
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41 #if !defined(_LIBCPP_CXX03_LANG)
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42
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43 // Some platforms don't implement <uchar.h> and we don't want to give a hard
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44 // error on those platforms. When the platform doesn't provide <uchar.h>, at
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45 // least include <stddef.h> so we get the declaration for size_t.
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46 #if __has_include_next(<uchar.h>)
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47 # include_next <uchar.h>
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48 #else
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49 # include <stddef.h>
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50 #endif
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51
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52 #endif // _LIBCPP_CXX03_LANG
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53
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54 #endif // _LIBCPP_UCHAR_H
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