// Writes a string to stdout. Does not write the string's null terminator, but
// _does_ append a newline to the output. Return 0 on success; EOF on failure.
extern "C" int __cdecl puts(char const* const string)
{
_VALIDATE_RETURN(string != nullptr, EINVAL, EOF);
FILE* const stream = stdout;
_VALIDATE_STREAM_ANSI_RETURN(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);
size_t const bytes_written = _fwrite_nolock(string, 1, length, stream);
// If we failed to write the entire string, or if we fail to write the
// newline, reset the buffering and return failure:
if (bytes_written != length || _fputc_nolock('\n', stream) == EOF)
{
return EOF;
}
return 0;
});
}
int __cdecl fputs(
const char* string,
FILE* stream
) {
REG2 int buffing;
REG1 size_t length;
REG3 size_t ndone;
_VALIDATE_RETURN((string != NULL), EINVAL, EOF);
_VALIDATE_RETURN((stream != NULL), EINVAL, EOF);
_VALIDATE_STREAM_ANSI_RETURN(stream, EINVAL, EOF);
length = strlen(string);
_lock_str(stream);
__try {
buffing = _stbuf(stream);
ndone = _fwrite_nolock(string, 1, length, stream);
_ftbuf(buffing, stream);
} __finally {
_unlock_str(stream);
}
return (ndone == length ? 0 : EOF);
}
