From: "HPMAN" <mwa DOT p AT infonie DOT fr>
Newsgroups: comp.os.msdos.djgpp
Subject: Weird : Segmentation fault on fwrite :(
Date: Sat, 29 Apr 2000 01:01:33 +0200
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Hi everyone !!!

I got some weird problem when using fwrite in DJGPP.

Look at this simple sample :

#include <stdio.h>

char TestBuff[32]="123456789012345678901234567890";
FILE *output;

int main(void) {
if((output=fopen("file.tst","wb"))==NULL) {
    printf("Error Opening Output File, Exiting...\n");
    exit(0);
} else {
        fwrite(&TestBuff,sizeof(char),32,output);
        fclose(output);
       }
return(1);
}


Well, this sample works (hard to do fewer things ;p)

The problem is I included this test pattern in my program causing problems,
and it doesn't work (functions are enclosed between lots of other code of
course, but remain 100% the same...

I got a segmentation fault : fwrite doesn't report an error, the program
crashes at the call...

I'm really don't know what to think about this...

Does anybody knows reasons to get an seg fault on an fwrite call ?!?


That's plain weird...


Thanks for help !!!