First commitHEADmain

1 files changed, 35 insertions, 0 deletions

diff --git a/lib/ft_strlcat.c b/lib/ft_strlcat.c
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index 0000000..00178e0
--- /dev/null
+++ b/lib/ft_strlcat.c
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+/*
+Libft Copyright (C) 2026 yctct
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "libft.h"
+
+size_t	ft_strlcat(char *dest, const char *src, size_t size)
+{
+	const size_t	dlen = ft_strlen(dest);
+	const size_t	slen = ft_strlen(src);
+
+	if (dlen >= size)
+		return (size + slen);
+	if (slen < size - dlen)
+		ft_memcpy(dest + dlen, src, slen + 1);
+	else
+	{
+		ft_memcpy(dest + dlen, src, size - dlen - 1);
+		dest[size - 1] = '\0';
+	}
+	return (dlen + slen);
+}