ALL: Avoid using is* macros from ctype.h

On some systems, passing signed chars to macros like isspace() etc. lead
to a runtime error. Hence, mark these macros as forbidden by default,
and introduce otherwise equivalent alternatives for them.

1 files changed, 2 insertions, 5 deletions

diff --git a/engines/sword25/util/lua/lbaselib.cpp b/engines/sword25/util/lua/lbaselib.cpp
index 3f0b645164..940ddcd4f9 100644
--- a/engines/sword25/util/lua/lbaselib.cpp
+++ b/engines/sword25/util/lua/lbaselib.cpp
@@ -6,10 +6,7 @@
 
 
 
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "common/util.h"
 
 #define lbaselib_c
 #define LUA_LIB
@@ -62,7 +59,7 @@ static int luaB_tonumber (lua_State *L) {
     luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range");
     n = strtoul(s1, &s2, base);
     if (s1 != s2) {  /* at least one valid digit? */
-      while (isspace((unsigned char)(*s2))) s2++;  /* skip trailing spaces */
+      while (isSpace(*s2)) s2++;  /* skip trailing spaces */
       if (*s2 == '\0') {  /* no invalid trailing characters? */
         lua_pushnumber(L, (lua_Number)n);
         return 1;