Update simplecpp.cpp

Author: chrchr-github

simplecpp.cpp

@@ -278,8 +278,8 @@ class simplecpp::TokenList::Stream {
     unsigned char peekChar() {
         const int pk = peek();
         auto ch = static_cast<unsigned char>(pk);
-        //if (pk == EOF)
-            //return ch;
+        if (pk == EOF)
+            return ch;
 
         // For UTF-16 encoded files the BOM is 0xfeff/0xfffe. If the
         // character is non-ASCII character then replace it with 0xff