src/bin/ed/re.c: warning: declaration of `exp' shadows a global declaration

With new gcc and -Wshadow, src/bin/ed/re.c shows this warning:

cc -Wshadow -c re.c
re.c: In function `get_compiled_pattern':
re.c:44: warning: declaration of `exp' shadows a global declaration
<built-in>:0: warning: shadowed declaration is here

It seems local variable exp is conflicted with exp(3) declaration.  I
don't know what name should be used...


Index: re.c
===================================================================
RCS file: /home/ncvs/src/bin/ed/re.c,v
retrieving revision 1.19
diff -u -r1.19 re.c
--- re.c	30 Jun 2002 05:13:53 -0000	1.19
+++ re.c	14 Jul 2003 23:42:41 -0000
_at__at_ -41,7 +41,7 _at__at_
 pattern_t *
 get_compiled_pattern(void)
 {
-	static pattern_t *exp = NULL;
+	static pattern_t *expr = NULL;
 	static char error[1024];
 
 	char *exps;
_at__at_ -52,27 +52,27 _at__at_
 		errmsg = "invalid pattern delimiter";
 		return NULL;
 	} else if (delimiter == '\n' || *++ibufp == '\n' || *ibufp == delimiter) {
-		if (!exp)
+		if (!expr)
 			errmsg = "no previous pattern";
-		return exp;
+		return expr;
 	} else if ((exps = extract_pattern(delimiter)) == NULL)
 		return NULL;
 	/* buffer alloc'd && not reserved */
-	if (exp && !patlock)
-		regfree(exp);
-	else if ((exp = (pattern_t *) malloc(sizeof(pattern_t))) == NULL) {
+	if (expr && !patlock)
+		regfree(expr);
+	else if ((expr = (pattern_t *) malloc(sizeof(pattern_t))) == NULL) {
 		fprintf(stderr, "%s\n", strerror(errno));
 		errmsg = "out of memory";
 		return NULL;
 	}
 	patlock = 0;
-	if ((n = regcomp(exp, exps, 0))) {
-		regerror(n, exp, error, sizeof error);
+	if ((n = regcomp(expr, exps, 0))) {
+		regerror(n, expr, error, sizeof error);
 		errmsg = error;
-		free(exp);
-		return exp = NULL;
+		free(expr);
+		return expr = NULL;
 	}
-	return exp;
+	return expr;
 }
 
 


-- 
Jun Kuriyama <kuriyama_at_imgsrc.co.jp> // IMG SRC, Inc.
             <kuriyama_at_FreeBSD.org> // FreeBSD Project