Prints the triforce

triforce.c

/*
 *
 * Triforce
 * By: Aaron
 * Started: August 10, 2012
 *
 */

#include <stdio.h>
#include <stdlib.h>

void printc( long count, char sym );

void printc( long count, char sym ) {
    long counter;
    for( counter = 0; counter < count; counter++ ) {
        putchar( sym );
    }
}

int main(int argc, char *argv[]) {

    long base, tbase, counter, tlimit, spacecounter, starcounter, ispaces, stars=-1, ospaces;

    if( argc != 2 ) {
        exit(1);
    }
    if( sscanf( argv[1], "%ld", &base ) != 1 ) {
        exit(1);
    }

    if( base < 7 ) {
        exit(1);
    }
    if( base % 2 == 0 ) {
        base--;
    }
    if( ((base--)/2) % 2  == 0 ) {
        base += 2;
    }

    ospaces=(base--)/2;
    tbase=ospaces;

    tlimit=(tbase++)/2;
    for( counter=0; counter < ospaces; counter++ ) {
        printc( ospaces, ' ' );
        stars += 2;
        printc( stars, '*' );
        printf("\n");
        ospaces--;
    }
    ispaces=stars;

    stars=-1;
    while( (ospaces >= 0) && (ispaces >= 1) ) {
        printc( ospaces, ' ' );
        ospaces--;
        stars += 2;
        printc( stars, '*' );
        printc( ispaces, ' ' );
        ispaces -= 2;
        printc( stars, '*' );
        printf("\n");
    }
    return 0;
}