get_next_line_utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: roferrei <roferrei@student.42sp.org.br>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/07/22 00:45:30 by roferrei          #+#    #+#             */
/*   Updated: 2022/08/12 00:04:38 by roferrei         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"

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

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

char	*ft_strdup(const char *s)
{
	char	*point;
	size_t	i;

	i = 0;
	point = (char *)malloc(sizeof(char) * ft_strlen(s) + 1);
	if (point == NULL)
		return (NULL);
	while (s[i])
	{
		point[i] = s[i];
		i++;
	}
	point[i] = '\0';
	return (point);
}

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

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

size_t	ft_strlcpy(char *dst, const char *src, size_t size)
{
	size_t	i;

	i = 0;
	if (!size)
		return (ft_strlen(src));
	while (i + 1 < size && src[i])
	{
		dst[i] = src[i];
		i++;
	}
	dst[i] = '\0';
	return (ft_strlen(src));
}

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

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