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1234567891011121314151617181920212223242526272829303132333435363738394041424344//// fputws.cpp//// Copyright (c) Microsoft Corporation. All rights reserved.//// Defines fputws(), which writes a wide character string to a stream.//#include <corecrt_internal_stdio.h>#include <corecrt_internal_ptd_propagation.h>
// Writes the given wide character string to the given stream. Does not write// the string's null terminator, and does not append a '\n' to the file. Returns// a nonnegative value on success; EOF on failure. (Note well that we return EOF// and not WEOF on failure. This is intentional, and is the correct behavior per// the C Language Standard).static int __cdecl _fputws_internal(wchar_t const* const string, FILE* const stream, __crt_cached_ptd_host& ptd){ _UCRT_VALIDATE_RETURN(ptd, string != nullptr, EINVAL, EOF); _UCRT_VALIDATE_RETURN(ptd, stream != nullptr, EINVAL, EOF);
return __acrt_lock_stream_and_call(stream, [&]() -> int { __acrt_stdio_temporary_buffering_guard const buffering(stream, ptd);
for (wchar_t const* it = string; *it != L'\0'; ++it) { if (_fputwc_nolock_internal(*it, stream, ptd) == WEOF) { return EOF; } }
return 0; });}
extern "C" int __cdecl fputws(wchar_t const* const string, FILE* const stream){ __crt_cached_ptd_host ptd; return _fputws_internal(string, stream, ptd);}