From fbfd50bd1f9207767b9f39fd445b5e08aa81e0f0 Mon Sep 17 00:00:00 2001
From: Moriyoshi Koizumi <moriyoshi@php.net>
Date: Tue, 20 Jul 2004 20:08:08 +0000
Subject: [PATCH] - Correct range checks. - Normalize negative values.

---
 ext/ctype/ctype.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ext/ctype/ctype.c b/ext/ctype/ctype.c
index db88978eb5..b16324042d 100644
--- a/ext/ctype/ctype.c
+++ b/ext/ctype/ctype.c
@@ -97,9 +97,11 @@ PHP_MINFO_FUNCTION(ctype)
 		return; \
  	switch (Z_TYPE_P(c)) { \
 	case IS_LONG: \
-		if (Z_LVAL_P(c) < 255 && Z_LVAL_P(c) > -127) {	\
+		if (Z_LVAL_P(c) <= 255 && Z_LVAL_P(c) >= 0) { \
 			RETURN_BOOL(iswhat(Z_LVAL_P(c))); \
-		}	\
+		} else if (Z_LVAL_P(c) >= -128) { \
+			RETURN_BOOL(iswhat(Z_LVAL_P(c) + 256)); \
+		} \
 		SEPARATE_ZVAL(&c);	\
 		convert_to_string(c);	\
 	case IS_STRING: \
-- 
2.50.1