libft/ft_memmove.c at main · samikhan78-wb/libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: alexfran <alexfran@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/13 12:40:12 by alexfran          #+#    #+#             */
/*   Updated: 2025/12/01 16:06:13 by alexfran         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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