From b694a78f62a02253bca2a5611314599ae7fce725 Mon Sep 17 00:00:00 2001
From: Littleboy
Date: Thu, 23 Jun 2011 05:42:48 -0400
Subject: ANALYSIS: Add static casts to is* functions

This fixes a potential problem with passing char values that would be sign-extended and yield unexpected results.
See http://msdn.microsoft.com/en-us/library/ms245348.aspx
---
 engines/sky/detection.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'engines/sky/detection.cpp')

diff --git a/engines/sky/detection.cpp b/engines/sky/detection.cpp
index f3cce06ad6..a1067496da 100644
--- a/engines/sky/detection.cpp
+++ b/engines/sky/detection.cpp
@@ -206,7 +206,7 @@ SaveStateList SkyMetaEngine::listSaves(const char *target) const {
 		// Extract the extension
 		Common::String ext = file->c_str() + file->size() - 3;
 		ext.toUppercase();
-		if (isdigit(ext[0]) && isdigit(ext[1]) && isdigit(ext[2])){
+		if (isdigit(static_cast<unsigned char>(ext[0])) && isdigit(static_cast<unsigned char>(ext[1])) && isdigit(static_cast<unsigned char>(ext[2]))){
 			int slotNum = atoi(ext.c_str());
 			Common::InSaveFile *in = saveFileMan->openForLoading(*file);
 			if (in) {
-- 
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