11.69 Glibc Extensions to <stdio.h>

• asprintf
• cuserid
• clearerr_unlocked
• fcloseall
• feof_unlocked
• ferror_unlocked
• fflush_unlocked
• fgetc_unlocked
• fgets_unlocked
• fileno_unlocked
• fopencookie
• fputc_unlocked
• fputs_unlocked
• fread_unlocked
• fwrite_unlocked
• getw
• putw
• setbuffer
• setlinebuf
• sys_errlist
• sys_nerr
• tmpnam_r
• vasprintf