functions1.c

#include "main.h"

/**
 * print_int - prints an integer
 *
 * @args: list of arguments
 *
 * Return: number of characters printed
 */
int print_int(va_list args)
{
	int n = va_arg(args, int), len = 0, copy = n, negative = 0, size, i = 0;
	char zero = '0', neg = '-';
	char *num;

	if (n == 0)
	{
		write(1, &zero, 1);
		return (1);
	}
	if (n < 0)
	{
		if (n == -2147483648)
			negative = 2, n++;
		else
			negative = 1;
		len++, n = -n;
	}
	while (copy)
		len++, copy /= 10;
	if (negative)
		size = len - 1;
	else
		size = len;
	num = (char *)malloc(sizeof(char) * size);
	if (num == NULL)
		return (-1);
	for (i = size - 1; i >= 0; i--)
		num[i] = zero + (n % 10), n /= 10;
	if (negative)
	{
		write(1, &neg, 1);
		if (negative == 2)
			num[size - 1] = '8';
	}
	for (i = 0; i < size; i++)
		write(1, &num[i], 1);
	free(num);
	return (len);
}

/**
 * print_rot13_str - ...
 * @args: ...
 *
 * Return: length of string
 */
int print_rot13_str(va_list args)
{
	int i = 0;
	char *s = va_arg(args, char *);
	char x;

	if (s == NULL)
		s = "(null)";
	for (i = 0; s[i] != '\0'; i++)
	{
		if (s[i] >= 'a' && s[i] <= 'z')
		{
			x = s[i] - 'a';
			x = 'a' + ((x + 13) % 26);
		}
		else if (s[i] >= 'A' && s[i] <= 'Z')
		{
			x = s[i] - 'A';
			x = 'A' + ((x + 13) % 26);
		}
		else
			x = s[i];
		write(1, &x, 1);
	}
	return (i);
}