libft_helper.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   libft_helper.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: andcardo <andcardo@student.42lisboa.com>   +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/29 23:33:03 by andcardo          #+#    #+#             */
/*   Updated: 2025/11/29 23:37:09 by andcardo         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "so_long.h"

void	ft_bzero(void *s, size_t n)
{
	unsigned char	*ptr;

	ptr = s;
	while (n > 0)
	{
		*ptr = 0;
		ptr++;
		n--;
	}
}

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

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

int	ft_strncmp(const char *s1, const char *s2, size_t n)
{
	size_t	i;

	if (n == 0)
		return (0);
	i = 0;
	while (s1[i] == s2[i]
		&& (i < n - 1)
		&& (s1[i] != '\0' || s2[i] != '\0'))
	{
		i++;
	}
	return ((unsigned char)s1[i] - (unsigned char)s2[i]);
}

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

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

char	*ft_strdup(const char *s1)
{
	size_t	str_len;
	char	*dest;

	str_len = ft_strlen(s1);
	dest = (char *)malloc((str_len + 1) * sizeof(char));
	if (dest == NULL)
		return (NULL);
	ft_strlcpy(dest, s1, str_len + 1);
	return (dest);
}