From a60d1e1a87849950c22b2c271f87a917272d3cd8 Mon Sep 17 00:00:00 2001
From: lalgarra <lalgarra@student.42madrid.com>
Date: Sat, 4 Oct 2025 13:09:36 +0200
Subject: [PATCH] ft_memset()

---
 Makefile                  |  5 ++--
 ft_memset_expected.output | 15 +++++++++++
 ft_memset_test.c          | 57 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 75 insertions(+), 2 deletions(-)
 create mode 100644 ft_memset_expected.output
 create mode 100644 ft_memset_test.c

diff --git a/Makefile b/Makefile
index cff3a21..b633515 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@
 #    By: lalgarra <lalgarra@student.42madrid.com>   +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2025/10/03 18:03:12 by lalgarra          #+#    #+#              #
-#    Updated: 2025/10/04 11:59:30 by lalgarra         ###   ########.fr        #
+#    Updated: 2025/10/04 13:04:25 by lalgarra         ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -17,7 +17,8 @@ LIBDIR = ../repo_libft_algarra
 CFLAGS += -Wall -Wextra -Werror -g3 -iquote $(LIBDIR) 
 
 TESTS := ft_isalpha_test ft_isdigit_test ft_isalnum_test ft_isascii_test \
-	ft_isprint_test ft_toupper_test ft_tolower_test ft_strlen_test
+	ft_isprint_test ft_toupper_test ft_tolower_test ft_strlen_test \
+	ft_memset_test
 
 %_test : %_test.c
 	$(CC) $(CFLAGS) $*_test.c -L$(LIBDIR) -lft -o $*_test
diff --git a/ft_memset_expected.output b/ft_memset_expected.output
new file mode 100644
index 0000000..8a8997f
--- /dev/null
+++ b/ft_memset_expected.output
@@ -0,0 +1,15 @@
+buff: "", n=0
+after call: buff: "", n=0
+res == buff: 1;
+buff: "", n=3
+after call: buff: "XXX", n=3
+res == buff: 1;
+buff: "Iorem ipsum dolor", n=3
+after call: buff: "XXXem ipsum dolor", n=3
+res == buff: 1;
+buff: "Iorem ipsum dolor", n=16
+after call: buff: "XXXXXXXXXXXXXXXXr", n=16
+res == buff: 1;
+buff: "Iorem ipsum dolor", n=17
+after call: buff: "XXXXXXXXXXXXXXXXX", n=17
+res == buff: 1;
diff --git a/ft_memset_test.c b/ft_memset_test.c
new file mode 100644
index 0000000..d0914f1
--- /dev/null
+++ b/ft_memset_test.c
@@ -0,0 +1,57 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_memset_test.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lalgarra <lalgarra@student.42madrid.com>   +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/10/03 18:27:44 by lalgarra          #+#    #+#             */
+/*   Updated: 2025/10/04 12:52:11 by lalgarra         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include <stdio.h>
+#include <string.h>
+
+void	do_test(const char *buff, size_t n)
+{
+	void	*res;
+	size_t	idx;
+	char	c1;
+
+	printf("buff: \"%s\", n=%lu\r\n", buff, n);
+	c1 = 'X';
+	res = ft_memset((void *)buff, c1, n);
+	printf("after call: buff: \"%s\", n=%lu\r\n", buff, n);
+	printf("res == buff: %i;", res == buff);
+	idx = 0;
+	while (idx < n)
+	{
+		if (*(buff + idx) != c1)
+		{
+			printf(" pos. %lu not set!!", idx);
+			idx = n;
+		}
+		idx++;
+	}
+	if (*(buff + n) == c1)
+		printf(" pos. %lu updated!!", idx);
+	printf("\r\n");
+}
+
+int	main(void)
+{
+	char	buff[18];
+
+	strcpy(buff, "");
+	do_test(buff, 0);
+	do_test(buff, 3);
+	strcpy(buff, "Iorem ipsum dolor");
+	do_test(buff, 3);
+	strcpy(buff, "Iorem ipsum dolor");
+	do_test(buff, 16);
+	strcpy(buff, "Iorem ipsum dolor");
+	do_test(buff, 17);
+	return (0);
+}