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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849//// putws.cpp//// Copyright (c) Microsoft Corporation. All rights reserved.//// Defines _putws(), which writes a wide character string to stdout.//#include <corecrt_internal_stdio.h>#include <corecrt_internal_ptd_propagation.h>
// Writes a wide character string to stdout. Does not write the string's null// terminator, but _does_ append a newline to the output. Returns 0 on success;// returns WEOF on failure.static int __cdecl _putws_internal(wchar_t const* const string, __crt_cached_ptd_host& ptd){ _UCRT_VALIDATE_RETURN(ptd, string != nullptr, EINVAL, WEOF);
FILE* const stream = stdout;
return __acrt_lock_stream_and_call(stream, [&]() -> int { __acrt_stdio_temporary_buffering_guard const buffering(stream, ptd);
// Write the string, character-by-character: for (wchar_t const* it = string; *it; ++it) { if (_fputwc_nolock_internal(*it, stream, ptd) == WEOF) { return WEOF; } }
if (_fputwc_nolock_internal(L'\n', stream, ptd) == WEOF) { return WEOF; }
return 0; });}
extern "C" int __cdecl _putws(wchar_t const* const string){ __crt_cached_ptd_host ptd; return _putws_internal(string, ptd);}