fread(3) [minix man page]
FREAD(3) Library Functions Manual FREAD(3) NAME
fread, fwrite - buffered binary input/output SYNOPSIS
#include <sys/types.h> #include <stdio.h> size_t fread(void *ptr, size_t itemsize, size_t nitems, FILE *stream) size_t fwrite(void *ptr, size_t itemsize, size_t nitems, FILE *stream) DESCRIPTION
Fread reads, into a block beginning at ptr, nitems of data of the type of *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 read(2) to satisfy the fread. Fwrite appends at most nitems of data of the type of *ptr beginning at ptr to the named output stream. It returns the number of items actually written. SEE ALSO
read(2), write(2), fopen(3), getc(3), putc(3), gets(3), puts(3), printf(3), scanf(3). DIAGNOSTICS
Fread and fwrite return 0 upon end of file or error. 4th Berkeley Distribution May 15, 1985 FREAD(3)
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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)