In here:

printf("Do you wish to continue?\n");
    scanf(" &c", &cont);
    wipe_buffer();
    }while(cont == 'y' || cont == 'Y');

there should be:

scanf(" %c", &cont);

Compile with -Wall -pedantic options next time you face some problem(if you use gcc). It shows nicely where the problem lies, and if not - it narrows it down a little.

That's what it shows in your case:

test2.c:117:5: warning: too many arguments for format [-Wformat-extra-args]
test2.c:120:1: warning: control reaches end of non-void function [-Wreturn-type]

so it's also a nice reminder that your main() function has to return some value.

In here:

printf("Do you wish to continue?\n");
    scanf(" &c", &cont);
    wipe_buffer();
    }while(cont == 'y' || cont == 'Y');

there should be:

scanf(" %c", &cont);

Compile with -Wall -pedantic options next time you face some problem(if you use gcc). It shows nicely where the problem lies, and if not - it narrows it down a little.

That's what it shows in your case:

test2.c:117:5: warning: too many arguments for format [-Wformat-extra-args]
test2.c:120:1: warning: control reaches end of non-void function [-Wreturn-type]

so it's also a nice reminder that your main() function has to return some value.

Another suggestion is to rad through this link:http://www.gidnetwork.com/b-60.html and follow to The Steps page.
To make it short - there's some information on how time and space consuming is reading one char from stdin with scanf in comparison to getchar.
Consider applying this suggestion in your code.

In here:

printf("Do you wish to continue?\n");
    scanf(" &c", &cont);
    wipe_buffer();
    }while(cont == 'y' || cont == 'Y');

there should be:

scanf(" %c", &cont);

Compile with -Wall -pedantic options next time you face some problem(if you use gcc). It shows nicely where the problem lies, and if not - it narrows it down a little.

In here:

printf("Do you wish to continue?\n");
    scanf(" &c", &cont);
    wipe_buffer();
    }while(cont == 'y' || cont == 'Y');

there should be:

scanf(" %c", &cont);

Compile with -Wall -pedantic options next time you face some problem(if you use gcc). It shows nicely where the problem lies, and if not - it narrows it down a little.

That's what it shows in your case:

test2.c:117:5: warning: too many arguments for format [-Wformat-extra-args]
test2.c:120:1: warning: control reaches end of non-void function [-Wreturn-type]

so it's also a nice reminder that your main() function has to return some value.