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12345678910111213141516171819202122232425262728293031323334353637383940414243//// fputs.cpp//// Copyright (c) Microsoft Corporation. All rights reserved.//// Defines fputs(), which writes a string to a stream.//#include <corecrt_internal_stdio.h>#include <corecrt_internal_ptd_propagation.h>
// Writes the given 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.static int __cdecl _fputs_internal(char 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); _UCRT_VALIDATE_STREAM_ANSI_RETURN(ptd, stream, EINVAL, EOF);
size_t const length = strlen(string);
return __acrt_lock_stream_and_call(stream, [&]() -> int { __acrt_stdio_temporary_buffering_guard const buffering(stream, ptd);
size_t const bytes_written = _fwrite_nolock_internal(string, 1, length, stream, ptd); if (bytes_written == length) { return 0; }
return EOF; });}
extern "C" int __cdecl fputs(char const* const string, FILE* const stream){ __crt_cached_ptd_host ptd; return _fputs_internal(string, stream, ptd);}