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ft_strlcpy.c
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ft_strlcpy.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strlcpy.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: akyoshid <akyoshid@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/16 13:25:11 by akyoshid #+# #+# */
/* Updated: 2023/11/17 21:09:09 by akyoshid ### ########.fr */
/* */
/* ************************************************************************** */
// === BEHAVIOR ===
// Copy up to dstsize-1 bytes from src to dst.
// The copied string in dst will always be NULL-terminate.
// If (dstsize <= 0) → Just return the length of src.
// === RETURN VALUE ===
// The return value is the length of src, not including '\0'.
// If the return value is >= dstsize, it means that truncation occurred.
#include "libft.h"
size_t ft_strlcpy(char *dst, const char *src, size_t dstsize)
{
size_t i;
i = 0;
if (dstsize > 0)
{
while (src[i] != '\0' && i < dstsize - 1)
{
dst[i] = src[i];
i++;
}
dst[i] = '\0';
}
while (src[i] != '\0')
i++;
return (i);
}
// int main(void)
// {
// char str1[100] = "abcdefg";
// char str2[100] = "1234567890";
// char *str3 = NULL;
// // printf("%lu : %s\n", ft_strlcpy(str1, str2, sizeof(str1)), str1);
// // printf("%lu : %s\n", strlcpy(str1, str2, sizeof(str1)), str1);
// // printf("%lu : %s\n", ft_strlcpy(str3, str2, 10), str1);
// // printf("%lu : %s\n", strlcpy(str3, str2, 10), str1);
// // printf("%lu : %s\n", ft_strlcpy(str1, str3, 10), str1);
// // printf("%lu : %s\n", strlcpy(str1, str3, 10), str1);
// // printf("%lu : %s\n", ft_strlcpy(str1, str2, 0), str1);
// printf("%lu : %s\n", strlcpy(str1, str2, 0), str1);
// return (0);
// }