get_next_line_utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: dsoroko <dsoroko@student.s19.be>           +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/05/16 18:10:16 by dsoroko           #+#    #+#             */
/*   Updated: 2022/05/25 11:06:44 by dsoroko          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"

size_t	ft_strlen(char *str)
{
	size_t	i;

	i = 0;
	if (!str)
		return (0);
	while (str[i])
		i++;
	return (i);
}

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

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

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

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