3-mul.c

#include <stdio.h>
		
#include "main.h"
		

		
/**
		
 * _atoi - converts a string to an integer
		
 * @s: string to be converted
		
 *
		
 * Return: the int converted from the string
		
 */
		
int _atoi(char *s)
		
{
		
	int i, d, n, len, f, digit;
		

		
	i = 0;
		
	d = 0;
		
	n = 0;
		
	len = 0;
		
	f = 0;
		
	digit = 0;
		

		
	while (s[len] != '\0')
		
		len++;
		

		
	while (i < len && f == 0)
		
	{
		
		if (s[i] == '-')
		
			++d;
		

		
		if (s[i] >= '0' && s[i] <= '9')
		
		{
		
			digit = s[i] - '0';
		
			if (d % 2)
		
				digit = -digit;
		
			n = n * 10 + digit;
		
			f = 1;
		
			if (s[i + 1] < '0' || s[i + 1] > '9')
		
				break;
		
			f = 0;
		
		}
		
		i++;
		
	}
		

		
	if (f == 0)
		
		return (0);
		

		
	return (n);
		
}
		

		
/**
		
 * main - multiplies two numbers
		
 * @argc: number of arguments
		
 * @argv: array of arguments
		
 *
		
 * Return: 0 (Success), 1 (Error)
		
 */
		
int main(int argc, char *argv[])
		
{
		
	int result, num1, num2;
		

		
	if (argc < 3 || argc > 3)
		
	{
		
		printf("Error\n");
		
		return (1);
		
	}
		

		
	num1 = _atoi(argv[1]);
		
	num2 = _atoi(argv[2]);
		
	result = num1 * num2;
		

		
	printf("%d\n", result);
		

		
	return (0);
		
}