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Use getc instead of fgetc. 

This is approximately five times faster for "comm -23 a b" where a and b
are identical 100MB files.
This commit is contained in:
simonb 2012-09-05 04:01:23 +00:00
parent 797d01de8d
commit 809c33aadd
1 changed files with 3 additions and 3 deletions
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6
usr.bin/comm/comm.c
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@ -1,4 +1,4 @@
/* $NetBSD: comm.c,v 1.19 2011/08/30 21:36:38 joerg Exp $ */
/* $NetBSD: comm.c,v 1.20 2012/09/05 04:01:23 simonb Exp $ */
/*
* Copyright (c) 1989, 1993, 1994
@ -42,7 +42,7 @@ __COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\
#if 0
static char sccsid[] = "@(#)comm.c 8.4 (Berkeley) 5/4/95";
#endif
__RCSID("$NetBSD: comm.c,v 1.19 2011/08/30 21:36:38 joerg Exp $");
__RCSID("$NetBSD: comm.c,v 1.20 2012/09/05 04:01:23 simonb Exp $");
#endif /* not lint */
#include <err.h>
@ -197,7 +197,7 @@ getnextln(char *buf, FILE *fp)
size_t i = 0;
int c;
while ((c = fgetc(fp)) != '\n' && c != EOF) {
while ((c = getc(fp)) != '\n' && c != EOF) {
buf[i++] = c;
if (i >= MAXLINELEN)