From a38e9e5f943ce22101d356119f5cf30053684f46 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kha=C3=AFs=20COLIN?= <kcolin@student.42.fr>
Date: Thu, 17 Oct 2024 10:42:43 +0200
Subject: [PATCH] ft_calloc: initial implementation

---
 Makefile    |  5 +++--
 ft_calloc.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 libft.h     |  4 +++-
 3 files changed, 52 insertions(+), 3 deletions(-)
 create mode 100644 ft_calloc.c

diff --git a/Makefile b/Makefile
index 47270de..b586977 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@
 #    By: kcolin <marvin@42.fr>                      +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2024/10/14 13:43:59 by kcolin            #+#    #+#              #
-#    Updated: 2024/10/16 16:02:21 by kcolin           ###   ########.fr        #
+#    Updated: 2024/10/17 10:21:34 by kcolin           ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -32,7 +32,8 @@ SOURCES = ft_isalpha.c \
 	ft_memchr.c \
 	ft_memcmp.c \
 	ft_strnstr.c \
-	ft_atoi.c
+	ft_atoi.c \
+	ft_calloc.c
 OBJECTS = $(SOURCES:.c=.o)
 CC = gcc
 
diff --git a/ft_calloc.c b/ft_calloc.c
new file mode 100644
index 0000000..2d49227
--- /dev/null
+++ b/ft_calloc.c
@@ -0,0 +1,46 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_calloc.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/17 10:20:05 by kcolin            #+#    #+#             */
+/*   Updated: 2024/10/17 10:40:21 by kcolin           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include <stdlib.h>
+
+void	*ft_calloc(size_t nmemb, size_t size)
+{
+	size_t	bytes;
+
+	bytes = nmemb * size;
+	if (nmemb != 0 && bytes / nmemb != size)
+		return (NULL);
+	else
+		return (malloc(bytes));
+}
+
+/*
+int	main(void)
+{
+	free(ft_calloc(0, sizeof(int)));
+	free(calloc(0, sizeof(int)));
+	printf("%p\t%p\n",
+		   ft_calloc(0, sizeof(int)),
+		   calloc(0, sizeof(int)));
+	free(ft_calloc(1024, sizeof(int)));
+	free(calloc(1024, sizeof(int)));
+	printf("%p\t%p\n",
+		   ft_calloc(1024, sizeof(int)),
+		   calloc(1024, sizeof(int)));
+	free(ft_calloc(SIZE_MAX, sizeof(int)));
+	free(calloc(SIZE_MAX, sizeof(int)));
+	printf("%p\t%p\n",
+		   ft_calloc(SIZE_MAX, sizeof(int)),
+		   calloc(SIZE_MAX, sizeof(int)));
+}
+*/
diff --git a/libft.h b/libft.h
index a6c1987..4acdc95 100644
--- a/libft.h
+++ b/libft.h
@@ -6,7 +6,7 @@
 /*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/10/15 10:11:54 by kcolin            #+#    #+#             */
-/*   Updated: 2024/10/16 16:06:06 by kcolin           ###   ########.fr       */
+/*   Updated: 2024/10/17 10:19:51 by kcolin           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -44,4 +44,6 @@ char	*ft_strnstr(const char *big, const char *little, size_t len);
 
 int		ft_atoi(const char *nptr);
 
+void	*ft_calloc(size_t nmemb, size_t size);
+
 #endif