ft_strnstr()

Makefile

@@ -6,7 +6,7 @@
 #    By: lalgarra <lalgarra@student.42madrid.com>   +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2025/10/03 18:03:12 by lalgarra          #+#    #+#              #
-#    Updated: 2025/10/06 20:06:11 by lalgarra         ###   ########.fr        #
+#    Updated: 2025/10/07 18:08:12 by lalgarra         ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -15,13 +15,14 @@ LIBDIR = ../repo_libft_algarra
 #LIBDIR = ../vogsphere_repo
 
 CFLAGS += -Wall -Wextra -Werror -g3 -iquote $(LIBDIR) \
-			-fsanitize=address -Wanalyzer-malloc-leak
+#			-fsanitize=address -Wanalyzer-malloc-leak
 
 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_memset_test ft_bzero_test ft_memcpy_test ft_calloc_test \
 	ft_memmove_test ft_strlcpy_test ft_strlcat_test ft_strchr_test \
-	ft_strrchr_test ft_strncmp_test ft_memcmp_test
+	ft_strrchr_test ft_strncmp_test ft_memcmp_test ft_strnstr_test \
+	
 
 %_test : %_test.c
 	$(CC) $(CFLAGS) $*_test.c -L$(LIBDIR) -lft -o $*_test
@@ -29,6 +30,9 @@ TESTS := ft_isalpha_test ft_isdigit_test ft_isalnum_test ft_isascii_test \
 %_actual.output : %_test
 	@./$*_test 2>&1 > ./$*_actual.output ;
 
+#alternative command
+#	@script -qc './$*_test &> ./$*_actual.output' 2> ./$*_actual.output 1> /dev/null
+
 %_report : %_test %_actual.output
 	-(diff -a $*_expected.output $*_actual.output \
 		&& echo "Test OK") > $*_report 

ft_strnstr_expected.output

@@ -0,0 +1,7 @@
+test 1: len:[40], big:[Lorem ipsum dolor sit amet consectetur adipiscing elit.], litl:[ipsum dolor], result:[ipsum dolor sit amet consectetur adipiscing elit.]
+test 2: len:[15], big:[Lorem ipsum], litl:[z], result:[-NULL-]
+test 3: len:[5], big:[], litl:[], result:[]
+test 4: len:[0], big:[], litl:[Lorem ip], result:[-NULL-]
+test 5: len:[4], big:[ÿªÞX], litl:[ÿªÞ], result:[ÿªÞX]
+test 6: len:[20], big:[is there], litl:[e], result:[ere]
+test 7: len:[3], big:[abcdefgh], litl:[abc], result:[abcdefgh]

ft_strnstr_test.c

@@ -0,0 +1,131 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strnstr_test.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lalgarra <lalgarra@student.42madrid.com>   +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/10/06 20:46:15 by lalgarra          #+#    #+#             */
+/*   Updated: 2025/10/07 18:00:51 by lalgarra         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+
+#include "libft.h"
+#include <stdio.h>
+#include <string.h>
+
+static void	test(char *prefix, char big[], char litl[], size_t len)
+{
+	char	*res;
+	int		fd;
+
+	fd = STDOUT_FILENO;
+	ft_putstr_fd(prefix, fd);
+	ft_putstr_fd("len:[", fd);
+	ft_putnbr_fd((int) len, fd);
+	ft_putstr_fd("], big:[", fd);
+	ft_putstr_fd(big, fd);
+	ft_putstr_fd("], litl:[", fd);
+	ft_putstr_fd(litl, fd);
+	res = ft_strnstr(big, litl, len);
+	ft_putstr_fd("], result:[", fd);
+	if (res == NULL)
+		ft_putstr_fd("-NULL-", fd);
+	else
+		ft_putstr_fd(res, fd);
+	ft_putendl_fd("]", fd);
+}
+
+static void	zero(char big[], char littl[])
+{
+	bzero(big, 128);
+	bzero(littl, 128);
+}
+
+static void	do_test1(char *prefix, char big[], char littl[])
+{
+	size_t	size;
+
+	size = 40;
+	zero(big, littl);
+	memcpy(big, "Lorem ipsum dolor sit amet consectetur adipiscing elit.", 56);
+	memcpy(littl, "ipsum dolor", 11);
+	test(prefix, big, littl, size);
+}
+
+static void	do_test2(char *prefix, char big[], char littl[])
+{
+	size_t	size;
+
+	zero(big, littl);
+	size = 15;
+	memcpy(big, "Lorem ipsum", 11);
+	memcpy(littl, "z", 1);
+	test(prefix, big, littl, size);
+}
+
+static void	do_test3(char *prefix, char big[], char littl[])
+{
+	size_t	size;
+
+	zero(big, littl);
+	size = 5;
+	test(prefix, big, littl, size);
+}
+
+static void	do_test4(char *prefix, char big[], char littl[])
+{
+	size_t	size;
+
+	zero(big, littl);
+	size = 0;
+	memcpy(littl, "Lorem ipsum dolor sit amet consectetur adipiscing elit.",
+		8);
+	test(prefix, big, littl, size);
+}
+
+static void	do_test5(char *prefix, char big[], char littl[])
+{
+	size_t	size;
+
+	zero(big, littl);
+	size = 4;
+	memcpy(littl, "\xff\xaa\xde\x12", 5);
+	memcpy(big, "\xff\xaa\xde\x12XABC", 5);
+	test(prefix, big, littl, size);
+}
+
+static void	do_test6(char *prefix, char big[], char littl[])
+{
+	size_t	size;
+
+	zero(big, littl);
+	size = 20;
+	memcpy(littl, "e\x00g", 3);
+	memcpy(big, "is there\x00 a nyacat ?",20);
+	test(prefix, big, littl, size);
+}
+
+static void	do_test7(char *prefix)
+{
+	size_t	size;
+
+	size = 3;
+	test(prefix, "abcdefgh", "abc", size);
+}
+
+int	main(void)
+{
+	char	big[128];
+	char	littl[128];
+
+	do_test1("test 1: ", big, littl);
+	do_test2("test 2: ", big, littl);
+	do_test3("test 3: ", big, littl);
+	do_test4("test 4: ", big, littl);
+	do_test5("test 5: ", big, littl);
+	do_test6("test 6: ", big, littl);
+	do_test7("test 7: ");
+	return (0);
+}