Libft/ft_strmapi.c at main · ghamry03/Libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strmapi.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ommohame < ommohame@student.42abudhabi.ae> +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/01/06 00:03:43 by ommohame          #+#    #+#             */
/*   Updated: 2022/01/12 23:52:21 by ommohame         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

/*
* creates a new string
* applies f function to s and saves it in the new string
* returns the new string
*/
char	*ft_strmapi(char const *s, char (*f)(unsigned int, char))
{
	int		i;
	char	*str;

	i = 0;
	if (!s || !f)
		return (0);
	str = (char *)malloc(sizeof(char) * ft_strlen(s) + 1);
	if (!str)
		return (0);
	while (s[i])
	{
		str[i] = (*f)(i, s[i]);
		i++;
	}
	str[i] = 0;
	return (str);
}