From: Yoshio HANAWA <y@hnw.jp>
Date: Sun, 13 Dec 2015 05:22:50 +0000 (+0900)
Subject: Optimize strtolower()/strtoupper()
X-Git-Tag: php-7.1.0alpha1~648^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fa78da99010ef3edcae216d969e7f81ca53a22d8;p=php

Optimize strtolower()/strtoupper()
---

diff --git a/ext/standard/string.c b/ext/standard/string.c
index 3922ff497d..01c7c6dffe 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -1439,7 +1439,7 @@ PHPAPI zend_string *php_string_toupper(zend_string *s)
 	e = c + ZSTR_LEN(s);
 
 	while (c < e) {
-		if (!isupper(*c)) {
+		if (islower(*c)) {
 			register unsigned char *r;
 			zend_string *res = zend_string_alloc(ZSTR_LEN(s), 0);
 
@@ -1508,7 +1508,7 @@ PHPAPI zend_string *php_string_tolower(zend_string *s)
 	e = c + ZSTR_LEN(s);
 
 	while (c < e) {
-		if (!islower(*c)) {
+		if (isupper(*c)) {
 			register unsigned char *r;
 			zend_string *res = zend_string_alloc(ZSTR_LEN(s), 0);