Re: [Dev-C++] Can't run a simple program

[Josh M. <mrl...@gm...>]

You're having the if statements run if there's a problem opening
either file, which is your problem.  You should be checking if fopen()
returns non-NULL.

Josh

On Apr 7, 2005 7:16 PM, Ecpin <ec...@ne...> wrote:
> Hi,
> 
> After many years I returned to C and used Bloodshed Dev-C++ IDE v4 to
> code a simple routine (as MS-DOS/console application) that should print
> a text file.
> 
> But, even though the code looks correct and compiles succesfully, when I
> run the program, windows displays the following error msg and the
> program terminates.
> 
> **- error msg:
> 
>    PrintMe.exe - Application Error
> 
>    The instruction at "0x78024222" referenced memory at "0x0000000c".
>    The memory could not be "read".
> 
>    Click on OK to terminate the program
>    Click on CANCEL to debug the program
> 
>    <OK BUTTON>  <CANCEL BUTTON>
> 
> **- end of error msg
> 
> The code I wrote is reproduced below:-
> 
> **- code begins:
> 
> #include <stdio.h>
> #include <stdlib.h>
> 
> int main(int argc, char *argv[])
> {
>    char str[80];
>    FILE *fp, *stdprn;
> 
>    if ((fp = fopen(argv[1], "r")) == NULL)
>    {
>      if ((stdprn = fopen("PRN", "w")) == NULL)
>      while(!feof(fp)) {             // error occurs here,
>             fgets(str, 79, fp);     // or here
>             fprintf(stdprn, "%s", &str);
>      }
>    }
>    fclose(fp);
>    fclose(stdprn);
>    return 0;
> }
> 
> **- code ends
> 
> Pls advice what could be wrong
> 
> Rgds
> R3
> 
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