Function return of type FILE

[csteinhilber]

It's late, I'm getting punchy, and I know I'm just missing something stupid... but I figured a few more sets of eyes on this would do wonders.

I'm trying to create a helper/wrapper function around a file open, such that I can pass in a mode, and the function will return the pointer to the file for subsequent reads/writes.

But every attempt so far has resulted in an "invalid conversion" error of some type or other on compile.

   void SFileMgr:ReadSave()
   {
      FILE *file=NULL;
      file = (FILE *) &GetGameSaveFile('rb');
      nb=fread(&content,sizeof(content),1,file);
   }
        

   FILE SFileMgr::GetSaveFile(const char mode)
   {
        switch(SUserMgr->GetSlotNum())
        {
           case 1:
           {
              return fopen("file1.sav", mode);
           }
           case 2:
           {
              return fopen("file2.sav", mode);
           }
           case 3:
           {
              return fopen("file3.sav", mode);
           }
           default:
           {
              return fopen("file0.sav", mode);
           }

        }

This version specifically errors @ file = (FILE *) &GetGameSaveFile('rb'); with "invalid conversion from 'int' to 'const char*'".
I know I have a pointer wrong somewhere, but I just don't see it.

Anybody have any insight?
Thanks in advance,
-Carl

 

[xwb]

fopen returns FILE*.

file = GetGameSaveFile("rb");
...

FILE* SFileMgr::GetSaveFile(const char mode
...
   default:
      return NULL;

 

[csteinhilber]

Thanks, xwb. I could swear I had that in some iteration or other that night.

But still no joy.

file = GetSaveFile("rb");

gives me a "invalid conversion" error.

Have I mentioned I hate pointers ;-)



-Carl

 

[ArkM]

I see you hate pointers (and vice versa.
The string literal "rb" has const char* type, not const char as you wrote in GetGameSaveFile header.
May be better try a language w/o pointers?

 

[ArkM]

Probably you have a keyword without asterisk key?
That's why you have troubles with pointers in C++...