Man Fread en anglais
FREAD(3)                   Linux Programmer's Manual                  FREAD(3)



 

NAME


       fread, fwrite - binary stream input/output

 

SYNOPSIS


       #include 

       size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream);

       size_t   fwrite(const  void  *ptr,  size_t  size,  size_t  nmemb,  FILE
       *stream);

 

DESCRIPTION






       The function fread() reads nmemb elements  of  data,  each  size  bytes
       long,  from  the stream pointed to by stream, storing them at the loca-
       tion given by ptr.

       The function fwrite() writes nmemb elements of data,  each  size  bytes
       long, to the stream pointed to by stream, obtaining them from the loca-
       tion given by ptr.

       For non-locking counterparts, see unlocked_stdio(3).

 

RETURN VALUE


       fread() and fwrite() return the number of items  successfully  read  or
       written  (i.e.,  not the number of characters).  If an error occurs, or
       the end-of-file is reached, the return value is a short item count  (or
       zero).

       fread() does not distinguish between end-of-file and error, and callers
       must use feof(3) and ferror(3) to determine which occurred.

 

CONFORMING TO


       C89, POSIX.1-2001.

 

SEE ALSO


       read(2), write(2), feof(3), ferror(3), unlocked_stdio(3)



BSD MANPAGE                       1996-05-17                          FREAD(3)