fread-fwrite

fread-fwrite - RETURN VALUE fread and fwrite return the...

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FREAD(3) Linux Programmer’sManual FREAD(3) NAME fread, fwrite - binary stream input/output SYNOPSIS #include <stdio.h> 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 location givenby ptr . The function fwrite writes nmemb elements of data, each size bytes long, to the stream pointed to by stream ,obtaining them from the location givenby ptr . Fornon-locking counterparts, see unlocked_stdio (3).
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Unformatted text preview: RETURN VALUE fread and fwrite return the number of items successfully read or written (i.e., not the number of charac-ters). 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 The functions fread and fwrite conform to ANSI X3.159-1989 (ANSI C). SEE ALSO read (2), write (2), feof (3), ferror (3), unlocked_stdio (3) BSD MANPAG E 1 996-05-17 1...
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This note was uploaded on 10/05/2009 for the course COMP 2510 taught by Professor A during the Spring '06 term at BC.

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