ft_strupr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strupr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ademenet <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2015/12/17 10:37:10 by ademenet          #+#    #+#             */
/*   Updated: 2015/12/17 10:40:46 by ademenet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <string.h>
#include "libft.h"

char	*ft_strupr(char *s1)
{
	int		i;

	i = 0;
	if (!s1)
		return (NULL);
	while (s1[i] != '\0')
	{
		if (ft_islower(s1[i]))
			s1[i] = ft_toupper(s1[i]);
	}
	return (s1);
}