change FileExists parameter to const

CubeModLauncher/main.cpp

@@ -9,7 +9,7 @@ char* MODLOADER_DLL = "CubeModLoader.dll";
 
 using namespace std;
 
-bool FileExists(char* fileName) {
+bool FileExists(const char* fileName) {
     DWORD dwAttrib = GetFileAttributes(fileName);
     return (dwAttrib != INVALID_FILE_ATTRIBUTES && !(dwAttrib & FILE_ATTRIBUTE_DIRECTORY));
 }

CubeModLauncher/main.h

@@ -1,7 +1,7 @@
 #ifndef MAIN_H_INCLUDED
 #define MAIN_H_INCLUDED
 
-bool FileExists(char* fileName);
+bool FileExists(const char* fileName);
 int Bail(int result);
 int main(int argc, char** argv);