Thread: Sample code please help!!!

THis is some code I was writing to open a txt file and read the numbers in. It compiles fine but when I run it the console only comes up for a split second and then disappears again. If anyone wants to look over it and post back a solution it would be greatly appreciated. I am trying to read in 5 numbers form a txt file hence the f1....f5.

Code:

/* Reading formatted file data with fscanf(). */
#include<stdlib.h>
#include<stdio.h>

int main(void)
{
    float f1,f2,f3,f4,f5;
    FILE *fp;
    
    if ((fp=fopen("input.txt", "r"))==NULL)
    {
                               fprintf(stderr, "Error opening the file.\n");
                               exit(1);
                               }
    fscanf(fp, "&#37;f %f %f %f %f", &f1,&f2,&f3,&f4,&f5);
    printf(" The values are %f,%f,%f,%f, and %f\n.", f1,f2,f3,f4,f5);
    getchar();
    fclose(fp);
    return 0;}

Try to add a 'getchar()' in the error handling section (between fprintf(stderr,...) and exit(1)), you're probably executing your program at a location where it cannot find 'input.txt' so it outputs the error, exits (and windows closes the console immediately).

Assuming your on windows, to see what your program actually does, just simply open a command prompt and execute your program through the command prompt.

ok thanks i'll try moving the getchar(). I would execute it through the command prompt except im coding in school where they don't allow students to access the command prompt.

Moving the getchar(); worked. Thanks for the help