3-main.c

#include <stdio.h> /* printf */
#include <stdlib.h> /* atoi */
#include "3-calc.h"

/**
 * main - when user runs main,
 * user should give two integers and an operator and
 * main will calculate the math via a function pointer.
 * prints sum, difference, product, dividend, or remainder
 * @argc: argument counter
 * @argv: arguments
 * Return: 0 on sucess
 */

int main(int argc, char *argv[])
{
	int n1, n2;
	int (*f)(int, int);

	if (argc != 4)
	{
		printf("Error\n");
		exit(98);
	}

	n1 = atoi(argv[1]);
	n2 = atoi(argv[3]);
	f = get_op_func(argv[2]);

	if (!f || argv[2][1] != '\0')
	{
		printf("Error\n");
		exit(99);
	}
	if ((argv[2][0] == '/' || argv[2][0] == '%') && argv[3][0] == '0')
	{
		printf("Error\n");
		exit(100);
	}

	printf("%d\n", f(n1, n2));

	return (0);
}