69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_memmove.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 13:56:25 by hulamy #+# #+# */
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/* Updated: 2019/12/10 23:53:40 by hulamy ### ########.fr */
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/* */
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/* ************************************************************************** */
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/*
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** copy n characters from src to dst in a non destructive way and return dst
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*/
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/*
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** #include <libc.h>
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**
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** size_t ft_strlen(const char *str)
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** {
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** size_t i;
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**
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** i = 0;
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** while (str[i])
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** i++;
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** return (i);
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** }
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**
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** void *ft_memmove(void *dst, const void *src, size_t len);
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**
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** //int main(int ac, char **av)
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** int main(void)
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** {
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** char *src = "this is a good nyancat !\r\n";
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** char dst[0xF0];
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** int size = strlen(src);
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**
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** // if (ac == 4)
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** // printf("%s\n", ft_memmove(av[1], av[2], atoi(av[3])));
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**
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** ft_memmove(dst, src, size);
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** printf("%s", dst);
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** return (0);
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** }
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*/
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#include "libft.h"
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void *ft_memmove(void *dst, const void *src, size_t len)
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{
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size_t i;
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char *cpsrc;
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char *cpdst;
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i = -1;
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cpsrc = (char *)src;
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cpdst = (char *)dst;
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if (dst == src)
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return (dst);
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if (cpsrc < cpdst)
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while (len--)
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cpdst[len] = cpsrc[len];
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else
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while (++i < len)
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cpdst[i] = cpsrc[i];
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return (dst);
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}
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