libft/ft_strmapi.c at master · edieusdi/libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strmapi.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ebin-ahm <ebin-ahm@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/29 21:05:24 by ebin-ahm          #+#    #+#             */
/*   Updated: 2025/11/29 21:34:06 by ebin-ahm         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strmapi(char const *s, char (*f)(unsigned int, char))
{
	char			*result;
	size_t			len;
	unsigned int	index;

	if (!s || !f)
		return (NULL);
	len = ft_strlen(s);
	result = (char *)malloc(len + 1);
	if (!result)
		return (NULL);
	index = 0;
	while (index < len)
	{
		result[index] = f(index, s[index]);
		index++;
	}
	result[index] = '\0';
	return (result);
}