fwrite.c File Reference

#include "../stdio.h"

Functions
size_t	fwrite (const void *ptr, size_t size, size_t count, FILE *stream)
	Write block of data to stream. More...

Function Documentation

fwrite()

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

Write block of data to stream.

Writes an array of count elements, each one with a size of size bytes, from the block of memory pointed by ptr to the current position in the stream. The position indicator of the stream is advanced by the total number of bytes written.

Parameters

ptr	Pointer to a block of memory with a size of at least (size*count) bytes, converted to a void*.
size	Size, in bytes, of each element to be read.
count	Number of elements, each one with a size of size bytes.
stream	Pointer to a FILE object that identifies the stream to be closed.

Returns

The total number of elements successfully written is returned. If this number differs from the count parameter, a writing error prevented the function from completing. In this case, the error indicator will be set for the stream.