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ft_strchr.c
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ft_strchr.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strchr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: akyoshid <akyoshid@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/18 09:56:21 by akyoshid #+# #+# */
/* Updated: 2023/11/25 14:57:03 by akyoshid ### ########.fr */
/* */
/* ************************************************************************** */
// === DESCRIPTION ===
// Locates the first occurrence of c (converted to a char) in s.
// The terminating null character is considered to be part of the string;
// therefore if c is ‘\0’, the functions locate the terminating ‘\0’.
// === RETURN VALUES ===
// Return a pointer to the located character,
// or NULL if the character does not appear in the string.
#include "libft.h"
char *ft_strchr(const char *s, int c)
{
char ch;
ch = (char)c;
while (1)
{
if (*s == ch)
return ((char *)s);
if (*s == '\0')
return (NULL);
s++;
}
}
// int main(void)
// {
// char str[] = "0123456789";
// char *p1;
// char *p2;
// char *p3;
// p1 = str + 4;
// p2 = ft_strchr(str, '4');
// p3 = strchr(str, '4');
// // p1 = NULL;
// // p2 = ft_strchr(str, 'a');
// // p3 = strchr(str, 'a');
// printf("%p\n", (void *)p1);
// printf("%p\n", (void *)p2);
// printf("%p\n", (void *)p3);
// return (0);
// }