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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: no-wide-characters
// <wchar.h>
#include <wchar.h>
#include <stdarg.h>
#include <stdio.h>
#include <type_traits>
#include "test_macros.h"
#ifndef NULL
#error NULL not defined
#endif
#ifndef WCHAR_MAX
#error WCHAR_MAX not defined
#endif
#ifndef WCHAR_MIN
#error WCHAR_MIN not defined
#endif
#ifndef WEOF
#error WEOF not defined
#endif
// mbstate_t comes from the underlying C library; it is defined (in C99) as:
// a complete object type other than an array type that can hold the conversion
// state information necessary to convert between sequences of multibyte
// characters and wide characters
mbstate_t mb = {};
size_t s = 0;
tm *tm = 0;
wint_t w = 0;
::FILE* fp = 0;
::va_list va;
char* ns = 0;
wchar_t* ws = 0;
const wchar_t* cws = 0;
wchar_t** wsp = 0;
ASSERT_SAME_TYPE(int, decltype(fwprintf(fp, L"")));
ASSERT_SAME_TYPE(int, decltype(fwscanf(fp, L"")));
ASSERT_SAME_TYPE(int, decltype(swprintf(ws, s, L"")));
ASSERT_SAME_TYPE(int, decltype(swscanf(L"", L"")));
ASSERT_SAME_TYPE(int, decltype(vfwprintf(fp, L"", va)));
ASSERT_SAME_TYPE(int, decltype(vfwscanf(fp, L"", va)));
ASSERT_SAME_TYPE(int, decltype(vswprintf(ws, s, L"", va)));
ASSERT_SAME_TYPE(int, decltype(vswscanf(L"", L"", va)));
ASSERT_SAME_TYPE(wint_t, decltype(fgetwc(fp)));
ASSERT_SAME_TYPE(wchar_t*, decltype(fgetws(ws, 0, fp)));
ASSERT_SAME_TYPE(wint_t, decltype(fputwc(L' ', fp)));
ASSERT_SAME_TYPE(int, decltype(fputws(L"", fp)));
ASSERT_SAME_TYPE(int, decltype(fwide(fp, 0)));
ASSERT_SAME_TYPE(wint_t, decltype(getwc(fp)));
ASSERT_SAME_TYPE(wint_t, decltype(putwc(L' ', fp)));
ASSERT_SAME_TYPE(wint_t, decltype(ungetwc(L' ', fp)));
ASSERT_SAME_TYPE(double, decltype(wcstod(L"", wsp)));
ASSERT_SAME_TYPE(float, decltype(wcstof(L"", wsp)));
ASSERT_SAME_TYPE(long double, decltype(wcstold(L"", wsp)));
ASSERT_SAME_TYPE(long, decltype(wcstol(L"", wsp, 0)));
ASSERT_SAME_TYPE(long long, decltype(wcstoll(L"", wsp, 0)));
ASSERT_SAME_TYPE(unsigned long, decltype(wcstoul(L"", wsp, 0)));
ASSERT_SAME_TYPE(unsigned long long, decltype(wcstoull(L"", wsp, 0)));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcscpy(ws, L"")));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcsncpy(ws, L"", s)));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcscat(ws, L"")));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcsncat(ws, L"", s)));
ASSERT_SAME_TYPE(int, decltype(wcscmp(L"", L"")));
ASSERT_SAME_TYPE(int, decltype(wcscoll(L"", L"")));
ASSERT_SAME_TYPE(int, decltype(wcsncmp(L"", L"", s)));
ASSERT_SAME_TYPE(size_t, decltype(wcsxfrm(ws, L"", s)));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcschr(ws, L' ')));
ASSERT_SAME_TYPE(const wchar_t*, decltype(wcschr(cws, L' ')));
ASSERT_SAME_TYPE(size_t, decltype(wcscspn(L"", L"")));
ASSERT_SAME_TYPE(size_t, decltype(wcslen(L"")));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcspbrk(ws, L"")));
ASSERT_SAME_TYPE(const wchar_t*, decltype(wcspbrk(cws, L"")));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcsrchr(ws, L' ')));
ASSERT_SAME_TYPE(const wchar_t*, decltype(wcsrchr(cws, L' ')));
ASSERT_SAME_TYPE(size_t, decltype(wcsspn(L"", L"")));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcsstr(ws, L"")));
ASSERT_SAME_TYPE(const wchar_t*, decltype(wcsstr(cws, L"")));
ASSERT_SAME_TYPE(wchar_t*, decltype(wcstok(ws, L"", wsp)));
ASSERT_SAME_TYPE(wchar_t*, decltype(wmemchr(ws, L' ', s)));
ASSERT_SAME_TYPE(const wchar_t*, decltype(wmemchr(cws, L' ', s)));
ASSERT_SAME_TYPE(int, decltype(wmemcmp(L"", L"", s)));
ASSERT_SAME_TYPE(wchar_t*, decltype(wmemcpy(ws, L"", s)));
ASSERT_SAME_TYPE(wchar_t*, decltype(wmemmove(ws, L"", s)));
ASSERT_SAME_TYPE(wchar_t*, decltype(wmemset(ws, L' ', s)));
ASSERT_SAME_TYPE(size_t, decltype(wcsftime(ws, s, L"", tm)));
ASSERT_SAME_TYPE(wint_t, decltype(btowc(0)));
ASSERT_SAME_TYPE(int, decltype(wctob(w)));
ASSERT_SAME_TYPE(int, decltype(mbsinit(&mb)));
ASSERT_SAME_TYPE(size_t, decltype(mbrlen("", s, &mb)));
ASSERT_SAME_TYPE(size_t, decltype(mbrtowc(ws, "", s, &mb)));
ASSERT_SAME_TYPE(size_t, decltype(wcrtomb(ns, L' ', &mb)));
ASSERT_SAME_TYPE(size_t, decltype(mbsrtowcs(ws, (const char**)0, s, &mb)));
ASSERT_SAME_TYPE(size_t, decltype(wcsrtombs(ns, (const wchar_t**)0, s, &mb)));
ASSERT_SAME_TYPE(wint_t, decltype(getwchar()));
ASSERT_SAME_TYPE(int, decltype(vwscanf(L"", va)));
ASSERT_SAME_TYPE(int, decltype(wscanf(L"")));
ASSERT_SAME_TYPE(wint_t, decltype(putwchar(L' ')));
ASSERT_SAME_TYPE(int, decltype(vwprintf(L"", va)));
ASSERT_SAME_TYPE(int, decltype(wprintf(L"")));
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