get_next_line_utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hbaddrul <hbaddrul@student.42kl.edu.my>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/05/18 16:50:06 by hbaddrul          #+#    #+#             */
/*   Updated: 2021/11/24 00:49:34 by hbaddrul         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <stdlib.h>

char	*ft_strchr(const char *s, int c)
{
	while (*s != (unsigned char)c)
		if (!*s++)
			return (0);
	return ((char *)s);
}

char	*ft_substr(const char *s, unsigned int start, size_t len)
{
	char	*ret;
	char	*tmp;
	size_t	i;

	ret = malloc(sizeof(char) * (len + 1));
	if (!ret)
		return (0);
	tmp = (char *)s + start;
	i = 0;
	while (*tmp && i < len)
		ret[i++] = *tmp++;
	ret[i] = 0;
	return (ret);
}

size_t	ft_strlen(const char *s)
{
	size_t	ret;

	ret = 0;
	while (*s++)
		++ret;
	return (ret);
}

char	*ft_strjoin(const char *s1, const char *s2)
{
	int		i;
	char	*ret;
	size_t	len;

	len = ft_strlen(s1) + ft_strlen(s2);
	ret = malloc(sizeof(char) * (len + 1));
	if (!ret)
		return (0);
	i = 0;
	while (*s1)
		ret[i++] = *s1++;
	while (*s2)
		ret[i++] = *s2++;
	ret[i] = 0;
	return (ret);
}