Fixes #216: out of bounds access

src/cmake.cc

@@ -261,6 +261,7 @@ void CMake::parse_variable_parameters(std::string &data) {
       pos--;
     }
     
+    if(pos!=static_cast<size_t>(-1))
       last_char=data[pos];
     pos++;
   }
@@ -318,6 +319,7 @@ std::vector<std::string> CMake::get_function_parameters(std::string &data) {
         parameter_pos=pos+1;
     }
     
+    if(pos!=static_cast<size_t>(-1))
       last_char=data[pos];
     pos++;
   }