fwrite man page on Ultrix

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fread(3s)							     fread(3s)

Name
       fread, fwrite - buffered binary input/output

Syntax
       #include <stdio.h>

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

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

Description
       The function reads into a block beginning at ptr, nitems of data of the
       size size (usually sizeof  *ptr)	 from  the  named  input  stream.   It
       returns the number of items actually read.

       If  stream  is stdin and the standard output is line buffered, then any
       partial output line will be flushed before any call to to satisfy the

       The function appends, at most, nitems of data of the size size (usually
       sizeof  *ptr)  beginning at ptr to the named output stream.  It returns
       the number of items actually written.

Return Values
       The and functions return 0 upon end of file or error.

See Also
       read(2), write(2), fopen(3s), getc(3s), gets(3s), printf(3s), putc(3s),
       puts(3s), scanf(3s)

								     fread(3s)
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