get_next_line_utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yel-bouk <yel-bouk@student.42nice.fr>      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/11/13 20:19:54 by yel-bouk          #+#    #+#             */
/*   Updated: 2024/11/19 16:27:20 by yel-bouk         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"

//Locates the first occurrence of a character in a string.
char	*ft_strchr(const char *str, int c)
{
	int	i;

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

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

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

void	*ft_memmove(void *dest, const void *src, size_t n)
{
	size_t			i;
	unsigned char	*s;
	unsigned char	*d;

	if (dest == src || n == 0)
		return (dest);
	i = 0;
	s = (unsigned char *)src;
	d = (unsigned char *)dest;
	if (d < s)
	{
		while (i < n)
		{
			d[i] = s[i];
			i++;
		}
	}
	else if (s < d)
	{
		while (n-- > 0)
		{
			d[n] = s[n];
		}
	}
	return (dest);
}

size_t	ft_strlen(const char *str)
{
	int	i;

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

char	*ft_strdup(const char *str)
{
	char	*cpy;
	int		len;

	len = ft_strlen(str) + 1;
	cpy = malloc((len) * sizeof(char));
	if (!cpy)
		return (NULL);
	ft_strlcpy(cpy, str, len);
	return (cpy);
}