unlocked_stdio

#include <stdio.h>
 I int getc_unlocked(FILE * stream );
I int getchar_unlocked(void);
I int putc_unlocked(int  c , FILE * stream );
I int putchar_unlocked(int  c );
 R #define _BSD_SOURCE  /* or _SVID_SOURCE or _GNU_SOURCE */
#include <stdio.h>
 I void clearerr_unlocked(FILE * stream );
I int feof_unlocked(FILE * stream );
I int ferror_unlocked(FILE * stream );
I int fileno_unlocked(FILE * stream );
I int fflush_unlocked(FILE * stream );
I int fgetc_unlocked(FILE * stream );
I int fputc_unlocked(int  c , FILE * stream );
I size_t fread_unlocked(void * ptr , size_t  size , size_t  n ,
I         FILE * stream );
I size_t fwrite_unlocked(const void * ptr , size_t  size , size_t  n ,
I         FILE * stream );
 #define _GNU_SOURCE
#include <stdio.h>
 I char *fgets_unlocked(char * s , int  n , FILE * stream );
I int fputs_unlocked(const char * s , FILE * stream );
 #define _GNU_SOURCE
#include <wchar.h>
 I wint_t getwc_unlocked(FILE * stream );
I wint_t getwchar_unlocked(void);
I wint_t fgetwc_unlocked(FILE * stream );
I wint_t fputwc_unlocked(wchar_t  wc , FILE * stream );
I wint_t putwc_unlocked(wchar_t  wc , FILE * stream );
I wint_t putwchar_unlocked(wchar_t  wc );
I wchar_t *fgetws_unlocked(wchar_t * ws , int  n , FILE * stream );
I int fputws_unlocked(const wchar_t * ws , FILE * stream );