msvcp: fixed char_traits<char>::to_int_type

[Andrey Zhezherun]

This patch fixes char_traits<char>::to_int_type. It needs to cast to
unsigned char instead of an int so that 0xff is not confused with EOF.

Regards,
Andrey
-------------- next part --------------
--- wine-1.7.5.orig/dlls/msvcp71/string.c	2013-10-25 18:45:30.000000000 +0100
+++ wine-1.7.5/dlls/msvcp71/string.c	2013-10-30 11:09:56.000000000 +0000
@@ -162,7 +162,7 @@
 /* ?to_int_type@?$char_traits at D@std@@SAHAEBD at Z */
 int CDECL MSVCP_char_traits_char_to_int_type(const char *ch)
 {
-    return (int)*ch;
+    return (unsigned char)*ch;
 }
 
 /* ?eq_int_type@?$char_traits at D@std@@SA_NABH0 at Z */
--- wine-1.7.5.orig/dlls/msvcp90/string.c	2013-10-25 18:45:30.000000000 +0100
+++ wine-1.7.5/dlls/msvcp90/string.c	2013-10-30 11:09:56.000000000 +0000
@@ -162,7 +162,7 @@
 /* ?to_int_type@?$char_traits at D@std@@SAHAEBD at Z */
 int CDECL MSVCP_char_traits_char_to_int_type(const char *ch)
 {
-    return (int)*ch;
+    return (unsigned char)*ch;
 }
 
 /* ?eq_int_type@?$char_traits at D@std@@SA_NABH0 at Z */