Thread: IF statement creates a segmentation fault.

Hi everyone,

Completely new to C and working on my own. I am using Code blocks. Why does this create a segmentation fault?

Code:

#include <stdio.h>


int main()
{
    int x ;

    printf("Type in the key\n");
     scanf("%d, &x");

    if ( x == 10 )
    {
       printf("Entered key number was correct!"); /* execute this line if above IF condition is TRUE*/
    }

    else
    {
        printf("Entered key number was incorrect"); /* execute this line if above IF condition is FALSE*/
    }
    return 0;
}

You should make sure you are compiling with maximum warnings enabled.

Code:

/*
main.c||In function 'main':|
main.c|9|warning: too few arguments for format|
main.c|11|warning: 'x' is used uninitialized in this function|
||=== Build finished: 0 errors, 2 warnings ===|
*/

These indicate you have a problem with your "scanf()" call. Looking closely, you have the closing quote in the wrong place.

It should be:

Code:

scanf("%d", &x);

Thank you so much!

Have put the extra warnings on now

Cheers

Very nice! You're welcome!