Checking if a function exists at compile time: native function failed at run time

Checking if a function exists at compile time: native function failed at run time - Printable Version

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+--- Thread: Checking if a function exists at compile time: native function failed at run time (/showthread.php?tid=503065)

Checking if a function exists at compile time: native function failed at run time - dusk - 27.03.2014

I need to check if a function is defined(for an include). So I wrote this code:

pawn Код:

#if !defined fcreate
    stock fcreate(const filename[]) 
    {
        printf("Fcreatea: start");
        if(!fexist(filename)) 
        {
            printf("Fcreatea: the file does Not exist");
            new File:file = fopen(filename,io_write);
            printf("Fcreatea: file opened");
            return fclose(file);
        }
        return 0;
    }
#endif

And a backtrace from crashdetect:

pawn Код:

[18:49:49] [debug] Run time error 10: "Native function failed"
[18:49:49] [debug]  fread
[18:49:49] [debug] AMX backtrace:
[18:49:49] [debug] #0 00000c50 in public OnGameModeInit () from speed.amx

I used the function in OnGameModeInit hook:

pawn Код:

printf("File does NOT exist");
        fcreate(BAN_FILE_NAME);

I left those prints there for a reason. This is the last thing printed out before "Native function failed":

pawn Код:

[18:49:49] File does NOT exist

Which is just before calling the function "fcreate"

If I remove the #if !defined part, it runs just like it should. But this is not a sollution.

All ideas will be appreciated

Re: Checking if a function exists at compile time: native function failed at run time - RajatPawar - 27.03.2014

To check for the existance of a function, use https://sampwiki.blast.hk/wiki/Funcidx (works only for publics)

Re: Checking if a function exists at compile time: native function failed at run time - dusk - 27.03.2014

That doesn't really help..(I think) I need to define it if it doesn't exist

Re: Checking if a function exists at compile time: native function failed at run time - Konstantinos - 27.03.2014

Unless you do it with #define:

pawn Код:

#if !defined fcreate
    #define fcreate(%0); if (!fexist(%0)) { new File:file = fopen(%0,io_write); if(file) fclose(file); }
#endif

Re: Checking if a function exists at compile time: native function failed at run time - dusk - 27.03.2014

Quote:

Originally Posted by Konstantinos

Unless you do it with #define:

pawn Код:

#if !defined fcreate
    #define fcreate(%0); if (!fexist(%0)) { new File:file = fopen(%0,io_write); if(file) fclose(file); }
#endif

Well that works, thanks

Re: Checking if a function exists at compile time: native function failed at run time - RajatPawar - 27.03.2014

EDIT: Late! Ignore. Sorry, didn't actually read the post, just replied by the title! You want to check if a function exists somewhere else, and if not, then define it? Can you actually run a test with an empty print stock? A stock that simply prints. The problem may be in your stock. IIRC, file functions crash when the file handle is invalid, etc. So checks for that.. I can't view your code, sorry, on mobile.

Re: Checking if a function exists at compile time: native function failed at run time - dusk - 27.03.2014

Quote:

Originally Posted by Rajat_Pawar

EDIT: Late! Ignore. Sorry, didn't actually read the post, just replied by the title! You want to check if a function exists somewhere else, and if not, then define it? Can you actually run a test with an empty print stock? A stock that simply prints. The problem may be in your stock. IIRC, file functions crash when the file handle is invalid, etc. So checks for that.. I can't view your code, sorry, on mobile.

I did create a simple stock... All it did was print a string... It still crashed..

Re: Checking if a function exists at compile time: native function failed at run time - dusk - 29.03.2014

bump

Re: Checking if a function exists at compile time: native function failed at run time - RajatPawar - 29.03.2014

Quote:

Originally Posted by dusk

Well that works, thanks

Hi! Didn't you reply that it worked?

Re: Checking if a function exists at compile time: native function failed at run time - dusk - 29.03.2014

I did... I guess bumping has become a habbit for me.