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fwrite() Write Unformatted Data to Stream
#include <stdio.h>
int fwrite(buffer,size,count,stream);
char *buffer; Pointer to data to be written
int size; Item size in bytes
int count; Max number of items to be written
FILE *stream; Pointer to file structure
fwrite() writes up to 'count' items of data, each of length 'size'
bytes, from 'buffer' to the output 'stream'. If there is a file
pointer associated with 'stream', it is incremented by the number of
bytes actually written.
Returns: The number of data items actually written. The number
may be less than 'count' if an error occurs.
Notes: If 'stream' was open in text mode, each carriage-return
is replaced with a carriage-return-line-feed pair. This
has no effect on the return value.
-------------------------------- Example ---------------------------------
The following statements open a file for appending and write the
contents of a buffer.
#include <stdio.h>
FILE *stream;
char buffr[128];
main()
{
if ((stream = fopen("data.bak","a+"))!= NULL) {
.
.
.
fwrite(buffr,sizeof(char),128,stream);
}
}
See Also:
fread()
write()
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