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ft_strmapi.c
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ft_strmapi.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strmapi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ichettri <ichettri@student.42wolfsburg. +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/27 19:43:15 by ichettri #+# #+# */
/* Updated: 2023/12/05 19:48:03 by ichettri ### ########.fr */
/* */
/* ************************************************************************** */
/*
Description: Applies the function ’f’ to each character of the
string ’s’, and passing its index as first argument
to create a new string (with malloc(3)) resulting
from successive applications of ’f’.
Return value: The string created from the successive applications
of ’f’.
Returns NULL if the allocation fails.
*/
#include "libft.h"
// #include <stdio.h>
#include <stdlib.h>
// static char toupper_converter(unsigned int i, char c)
// {
// c = c - i;
// return (c);
// }
char *ft_strmapi(char const *s, char (*f)(unsigned int, char))
{
int len;
int i;
char *result;
if (s == NULL)
return (NULL);
i = 0;
len = ft_strlen(s);
result = (char *)malloc((len + 1) * sizeof(char));
if (result == NULL)
return (NULL);
while (i < len)
{
result[i] = f(i, s[i]);
i++;
}
result[len] = '\0';
return (result);
}
// int main(void)
// {
// char src[] = "HelloMama";
// char *dst;
// dst = ft_strmapi(src, &toupper_converter);
// printf("%s\n", dst);
// free(dst);
// return (0);
// }