sbase

commit fb85f99c0a5bb330178d29d582aedc07b1a0f5db
parent 7e8fcc1f037f2d9339cb5f4e0da6eeefde152525
Author: sin <sin@2f30.org>
Date:   Tue, 16 Dec 2014 20:20:41 +0000

grep: Reuse allocated buffers

Diffstat:
M
grep.c
 | 
12
++++++------

1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/grep.c b/grep.c
@@ -177,15 +177,15 @@ addpattern(const char *pattern)
 static void
 addpatternfile(FILE *fp)
 {
-	char *buf = NULL;
-	size_t len = 0, size = 0;
+	static char *buf = NULL;
+	static size_t size = 0;
+	size_t len = 0;
 
 	while ((len = getline(&buf, &size, fp)) != -1) {
 		if (len && buf[len - 1] == '\n')
 			buf[len - 1] = '\0';
 		addpattern(buf);
 	}
-	free(buf);
 	if (ferror(fp))
 		enprintf(Error, "read error:");
 }
@@ -193,8 +193,9 @@ addpatternfile(FILE *fp)
 static int
 grep(FILE *fp, const char *str)
 {
-	char *buf = NULL;
-	size_t len = 0, size = 0;
+	static char *buf = NULL;
+	static size_t size = 0;
+	size_t len = 0;
 	long c = 0, n;
 	struct pattern *pnode;
 	int match = NoMatch;
@@ -250,6 +251,5 @@ end:
 		weprintf("%s: read error:", str);
 		match = Error;
 	}
-	free(buf);
 	return match;
 }