104 FILE* stdout = &__sF[1];  variable
113   if (fp == stdin || fp == stderr || fp == stdout) {  in __get_file_tag()
896   PRINTF_IMPL(vfprintf(stdout, fmt, ap));  in printf()
919   return putc(c, stdout);  in putchar()
923   return putc_unlocked(c, stdout);  in putchar_unlocked()
928   ScopedFileLock sfl(stdout);  in puts()
929   return (fwrite_unlocked(s, 1, length, stdout) == length &&  in puts()
930           putc_unlocked('\n', stdout) != EOF) ? 0 : EOF;  in puts()
939   return fputwc(wc, stdout);  in putwchar()
1015   return vfprintf(stdout, fmt, ap);  in vprintf()
1053   return vfwprintf(stdout, fmt, ap);  in vwprintf()
1061   PRINTF_IMPL(vfwprintf(stdout, fmt, ap));  in wprintf()