get_next_line_utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ariahi <ariahi@student.42.fr>              +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/12/14 10:54:26 by ariahi            #+#    #+#             */
/*   Updated: 2023/01/17 15:04:39 by ariahi           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"

size_t	ft_strlen_utils(const char *s)
{
	size_t	i;

	i = 0;
	while (s[i])
		i++;
	return (i);
}

char	*ft_strchr_utils(char *s, int c)
{
	int	i;

	i = 0;
	if (!s)
		return (NULL);
	while (*s != '\0')
	{
		if (*s == (char) c)
			return (&*s);
		s++;
	}
	return (NULL);
}

char	*ft_strjoin_utils(char *s1, char *s2)
{
	char	*str;
	int		i;
	int		j;

	if (!s1)
	{
		s1 = malloc(sizeof(char) * 1);
		s1[0] = '\0';
	}
	if (!s1 || !s2)
		return (NULL);
	str = malloc((ft_strlen_utils(s1) + ft_strlen_utils(s2) + 1) * sizeof(char));
	if (!str)
		return (NULL);
	i = -1;
	while (s1[++i])
		str[i] = s1[i];
	j = 0;
	while (s2[j])
		str[i++] = s2[j++];
	str[i] = '\0';
	return (free(s1), str);
}