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In <1992Sep28.092116.29086@monu6.cc.monash.edu.au> sci240s@monu6.cc.monash.edu.au (Wey Jing HO) writes:

I've just found the problem. Replacing the line where the file is opened with
"r+b" to "rb" solves the problem BUT why shouldn't "r+b" work correctly?
If I read all the C books I have, "r+b" should work almost similarly to "rb"
except that "r+b" allows updating. So, is this a bug in GCC?


>In trying to use GCC Version 2 for OS/2, I have the following problem:

>I am having problem writing a program that read in data in binary format
>into an array. I've included the source as below with all the instructions
>I used to compile and link it (with link386). Please help.


>/* Start of test program */
>#include <stdio.h>
>#include <stdlib.h>

>#define ERROR -1
>#define OK     1

>int main(){
>   FILE *fp_in;

>   unsigned char image[512];

>   int number;

>   if ((fp_in = fopen("test.img", "r+b")) == NULL){ /* open image file */
>      printf("\nfopen() failed.\n");
>      fflush(stdout);
>      exit(ERROR);

* Remainder deleted.
-- 
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>Wey Jing Ho    Tel: 61-3-573-2567   E-mail : sci240s@monu6.cc.monash.edu.au<
>Physics Dept., Monash University ( Caulfield Campus ), Melbourne, AUSTRALIA<
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