ft_strmapi.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strmapi.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: fcil <fcil@student.42.fr>                  +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/01/21 20:51:38 by fcil              #+#    #+#             */
/*   Updated: 2022/02/02 14:34:02 by fcil             ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strmapi(char const *s, char (*f)(unsigned int, char))
{
	unsigned int	i;
	char			*str;

	if (!s || !f)
		return (NULL);
	i = 0;
	str = (char *) ft_calloc(ft_strlen(s) + 1, sizeof(char));
	if (!str)
		return (NULL);
	while (s[i])
	{
		str[i] = f(i, s[i]);
		i++;
	}
	return (str);
}
// ilk parametre, normal string, ikinci parametre fonksiyon pointeri.
//23 -yeni str oluşturuluyor.
// 28 her char için fonksiyon uygulanıyor.