Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/3/84; site talcott.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!genrad!panda!talcott!tmb From: tmb@talcott.UUCP (Thomas M. Breuel) Newsgroups: net.unix,net.lang.c Subject: Re: READ versus FREAD and WRITE versus FWRITE ... Message-ID: <343@talcott.UUCP> Date: Sat, 9-Mar-85 01:12:18 EST Article-I.D.: talcott.343 Posted: Sat Mar 9 01:12:18 1985 Date-Received: Mon, 11-Mar-85 06:41:50 EST References: <1070@tekgvs.UUCP> Organization: Harvard University Lines: 13 Xref: watmath net.unix:3899 net.lang.c:4702 > I would be interested to know in which cases > read/write(fildes, buffer, nbytes)'s > are more time efficient than > fread/fwrite(ptr, sizeof(*ptr), nitems, stream)'s . If you read large (> blocksize) items from a file, then read/write is faster. This is because fread/fwrite use read/write to read blocks from a file. Personally, I prefer using stdio for terminal I/O and read/write for binary file I/O. Thomas.