commit 0f04f057684876a8110657d10fcaf73cd9f9621b
Author: Yiyuan Li <yy@eyuan.me>
Date:   Mon Dec 1 15:08:24 2025 +0800

    test

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..69a743e
--- /dev/null
+++ b/main.c
@@ -0,0 +1,460 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   main.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: yiyuli <yy@eyuan.me>                       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/12/01 00:00:00 by yiyuli            #+#    #+#             */
+/*   Updated: 2025/12/01 00:00:00 by yiyuli           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_printf.h"
+#include <stdio.h>
+#include <limits.h>
+#include <string.h>
+
+#define RED "\033[0;31m"
+#define GREEN "\033[0;32m"
+#define YELLOW "\033[0;33m"
+#define RESET "\033[0m"
+
+static int g_tests = 0;
+static int g_passed = 0;
+
+void	print_header(const char *title)
+{
+	printf("\n%s========== %s ==========%s\n", YELLOW, title, RESET);
+}
+
+void	compare_return(int ft_ret, int std_ret, const char *test_name)
+{
+	g_tests++;
+	if (ft_ret == std_ret)
+	{
+		g_passed++;
+		printf("%s[PASS]%s %s (ret: %d)\n", GREEN, RESET, test_name, ft_ret);
+	}
+	else
+	{
+		printf("%s[FAIL]%s %s (ft: %d, std: %d)\n", RED, RESET, test_name, ft_ret, std_ret);
+	}
+}
+
+int main(void)
+{
+	int ft_ret;
+	int std_ret;
+	char *null_str = NULL;
+	void *null_ptr = NULL;
+
+	printf("\n%s╔══════════════════════════════════════════════════════════╗%s\n", YELLOW, RESET);
+	printf("%s║          ft_printf COMPREHENSIVE TEST SUITE              ║%s\n", YELLOW, RESET);
+	printf("%s╚══════════════════════════════════════════════════════════╝%s\n", YELLOW, RESET);
+
+	/* ==================== CHARACTER TESTS ==================== */
+	print_header("CHARACTER (%c) TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", 'a');
+	printf("std: "); std_ret = printf("%c\n", 'a');
+	compare_return(ft_ret, std_ret, "simple char 'a'");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", 'Z');
+	printf("std: "); std_ret = printf("%c\n", 'Z');
+	compare_return(ft_ret, std_ret, "uppercase char 'Z'");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", '0');
+	printf("std: "); std_ret = printf("%c\n", '0');
+	compare_return(ft_ret, std_ret, "digit char '0'");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", ' ');
+	printf("std: "); std_ret = printf("%c\n", ' ');
+	compare_return(ft_ret, std_ret, "space char");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", '\t');
+	printf("std: "); std_ret = printf("%c\n", '\t');
+	compare_return(ft_ret, std_ret, "tab char");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", 0);
+	printf("std: "); std_ret = printf("%c\n", 0);
+	compare_return(ft_ret, std_ret, "null char (0)");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", 127);
+	printf("std: "); std_ret = printf("%c\n", 127);
+	compare_return(ft_ret, std_ret, "DEL char (127)");
+
+	printf("ft: "); ft_ret = ft_printf("%c\n", -128);
+	printf("std: "); std_ret = printf("%c\n", -128);
+	compare_return(ft_ret, std_ret, "char -128 (overflow)");
+
+	printf("ft: "); ft_ret = ft_printf("%c%c%c\n", 'a', 'b', 'c');
+	printf("std: "); std_ret = printf("%c%c%c\n", 'a', 'b', 'c');
+	compare_return(ft_ret, std_ret, "multiple chars 'abc'");
+
+	/* ==================== STRING TESTS ==================== */
+	print_header("STRING (%s) TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%s\n", "Hello, World!");
+	printf("std: "); std_ret = printf("%s\n", "Hello, World!");
+	compare_return(ft_ret, std_ret, "simple string");
+
+	printf("ft: "); ft_ret = ft_printf("%s\n", "");
+	printf("std: "); std_ret = printf("%s\n", "");
+	compare_return(ft_ret, std_ret, "empty string");
+
+	printf("ft: "); ft_ret = ft_printf("%s\n", null_str);
+	printf("std: "); std_ret = printf("%s\n", null_str);
+	compare_return(ft_ret, std_ret, "NULL string");
+
+	printf("ft: "); ft_ret = ft_printf("%s\n", "   ");
+	printf("std: "); std_ret = printf("%s\n", "   ");
+	compare_return(ft_ret, std_ret, "whitespace only");
+
+	printf("ft: "); ft_ret = ft_printf("%s\n", "\t\n\r");
+	printf("std: "); std_ret = printf("%s\n", "\t\n\r");
+	compare_return(ft_ret, std_ret, "escape sequences");
+
+	printf("ft: "); ft_ret = ft_printf("%s%s%s\n", "Hello", " ", "World");
+	printf("std: "); std_ret = printf("%s%s%s\n", "Hello", " ", "World");
+	compare_return(ft_ret, std_ret, "multiple strings");
+
+	printf("ft: "); ft_ret = ft_printf("%s\n", "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
+	printf("std: "); std_ret = printf("%s\n", "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
+	compare_return(ft_ret, std_ret, "long alphanumeric string");
+
+	/* ==================== POINTER TESTS ==================== */
+	print_header("POINTER (%p) TESTS");
+
+	int test_int = 42;
+	char test_char = 'x';
+	char *test_str = "test";
+
+	printf("ft: "); ft_ret = ft_printf("%p\n", &test_int);
+	printf("std: "); std_ret = printf("%p\n", &test_int);
+	compare_return(ft_ret, std_ret, "int pointer");
+
+	printf("ft: "); ft_ret = ft_printf("%p\n", &test_char);
+	printf("std: "); std_ret = printf("%p\n", &test_char);
+	compare_return(ft_ret, std_ret, "char pointer");
+
+	printf("ft: "); ft_ret = ft_printf("%p\n", test_str);
+	printf("std: "); std_ret = printf("%p\n", test_str);
+	compare_return(ft_ret, std_ret, "string pointer");
+
+	printf("ft: "); ft_ret = ft_printf("%p\n", null_ptr);
+	printf("std: "); std_ret = printf("%p\n", null_ptr);
+	compare_return(ft_ret, std_ret, "NULL pointer");
+
+	printf("ft: "); ft_ret = ft_printf("%p\n", (void *)1);
+	printf("std: "); std_ret = printf("%p\n", (void *)1);
+	compare_return(ft_ret, std_ret, "pointer value 1");
+
+	printf("ft: "); ft_ret = ft_printf("%p\n", (void *)LONG_MAX);
+	printf("std: "); std_ret = printf("%p\n", (void *)LONG_MAX);
+	compare_return(ft_ret, std_ret, "LONG_MAX as pointer");
+
+	printf("ft: "); ft_ret = ft_printf("%p\n", (void *)ULONG_MAX);
+	printf("std: "); std_ret = printf("%p\n", (void *)ULONG_MAX);
+	compare_return(ft_ret, std_ret, "ULONG_MAX as pointer");
+
+	printf("ft: "); ft_ret = ft_printf("%p%p\n", &test_int, &test_char);
+	printf("std: "); std_ret = printf("%p%p\n", &test_int, &test_char);
+	compare_return(ft_ret, std_ret, "multiple pointers");
+
+	/* ==================== DECIMAL/INTEGER TESTS ==================== */
+	print_header("DECIMAL/INTEGER (%d/%i) TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", 0);
+	printf("std: "); std_ret = printf("%d\n", 0);
+	compare_return(ft_ret, std_ret, "zero");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", 42);
+	printf("std: "); std_ret = printf("%d\n", 42);
+	compare_return(ft_ret, std_ret, "positive 42");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", -42);
+	printf("std: "); std_ret = printf("%d\n", -42);
+	compare_return(ft_ret, std_ret, "negative -42");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", INT_MAX);
+	printf("std: "); std_ret = printf("%d\n", INT_MAX);
+	compare_return(ft_ret, std_ret, "INT_MAX");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", INT_MIN);
+	printf("std: "); std_ret = printf("%d\n", INT_MIN);
+	compare_return(ft_ret, std_ret, "INT_MIN");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", (int)-2147483648);
+	printf("std: "); std_ret = printf("%d\n", (int)-2147483648);
+	compare_return(ft_ret, std_ret, "-2147483648 literal");
+
+	printf("ft: "); ft_ret = ft_printf("%i\n", 0);
+	printf("std: "); std_ret = printf("%i\n", 0);
+	compare_return(ft_ret, std_ret, "%i zero");
+
+	printf("ft: "); ft_ret = ft_printf("%i\n", INT_MAX);
+	printf("std: "); std_ret = printf("%i\n", INT_MAX);
+	compare_return(ft_ret, std_ret, "%i INT_MAX");
+
+	printf("ft: "); ft_ret = ft_printf("%i\n", INT_MIN);
+	printf("std: "); std_ret = printf("%i\n", INT_MIN);
+	compare_return(ft_ret, std_ret, "%i INT_MIN");
+
+	printf("ft: "); ft_ret = ft_printf("%d%d%d\n", 1, 2, 3);
+	printf("std: "); std_ret = printf("%d%d%d\n", 1, 2, 3);
+	compare_return(ft_ret, std_ret, "multiple decimals");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", 1);
+	printf("std: "); std_ret = printf("%d\n", 1);
+	compare_return(ft_ret, std_ret, "single digit 1");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", -1);
+	printf("std: "); std_ret = printf("%d\n", -1);
+	compare_return(ft_ret, std_ret, "single digit -1");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", 10);
+	printf("std: "); std_ret = printf("%d\n", 10);
+	compare_return(ft_ret, std_ret, "10");
+
+	printf("ft: "); ft_ret = ft_printf("%d\n", -10);
+	printf("std: "); std_ret = printf("%d\n", -10);
+	compare_return(ft_ret, std_ret, "-10");
+
+	/* ==================== UNSIGNED TESTS ==================== */
+	print_header("UNSIGNED (%u) TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%u\n", 0);
+	printf("std: "); std_ret = printf("%u\n", 0);
+	compare_return(ft_ret, std_ret, "unsigned zero");
+
+	printf("ft: "); ft_ret = ft_printf("%u\n", 42);
+	printf("std: "); std_ret = printf("%u\n", 42);
+	compare_return(ft_ret, std_ret, "unsigned 42");
+
+	printf("ft: "); ft_ret = ft_printf("%u\n", UINT_MAX);
+	printf("std: "); std_ret = printf("%u\n", UINT_MAX);
+	compare_return(ft_ret, std_ret, "UINT_MAX");
+
+	printf("ft: "); ft_ret = ft_printf("%u\n", 4294967295U);
+	printf("std: "); std_ret = printf("%u\n", 4294967295U);
+	compare_return(ft_ret, std_ret, "4294967295U literal");
+
+	printf("ft: "); ft_ret = ft_printf("%u\n", (unsigned int)-1);
+	printf("std: "); std_ret = printf("%u\n", (unsigned int)-1);
+	compare_return(ft_ret, std_ret, "(unsigned int)-1");
+
+	printf("ft: "); ft_ret = ft_printf("%u\n", (unsigned int)-42);
+	printf("std: "); std_ret = printf("%u\n", (unsigned int)-42);
+	compare_return(ft_ret, std_ret, "(unsigned int)-42");
+
+	printf("ft: "); ft_ret = ft_printf("%u%u%u\n", 1, 2, 3);
+	printf("std: "); std_ret = printf("%u%u%u\n", 1, 2, 3);
+	compare_return(ft_ret, std_ret, "multiple unsigned");
+
+	/* ==================== LOWERCASE HEX TESTS ==================== */
+	print_header("LOWERCASE HEX (%x) TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", 0);
+	printf("std: "); std_ret = printf("%x\n", 0);
+	compare_return(ft_ret, std_ret, "hex zero");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", 10);
+	printf("std: "); std_ret = printf("%x\n", 10);
+	compare_return(ft_ret, std_ret, "hex 10 (a)");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", 15);
+	printf("std: "); std_ret = printf("%x\n", 15);
+	compare_return(ft_ret, std_ret, "hex 15 (f)");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", 16);
+	printf("std: "); std_ret = printf("%x\n", 16);
+	compare_return(ft_ret, std_ret, "hex 16 (10)");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", 255);
+	printf("std: "); std_ret = printf("%x\n", 255);
+	compare_return(ft_ret, std_ret, "hex 255 (ff)");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", 256);
+	printf("std: "); std_ret = printf("%x\n", 256);
+	compare_return(ft_ret, std_ret, "hex 256 (100)");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", UINT_MAX);
+	printf("std: "); std_ret = printf("%x\n", UINT_MAX);
+	compare_return(ft_ret, std_ret, "hex UINT_MAX");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", 0xdeadbeef);
+	printf("std: "); std_ret = printf("%x\n", 0xdeadbeef);
+	compare_return(ft_ret, std_ret, "hex deadbeef");
+
+	printf("ft: "); ft_ret = ft_printf("%x\n", (unsigned int)-1);
+	printf("std: "); std_ret = printf("%x\n", (unsigned int)-1);
+	compare_return(ft_ret, std_ret, "hex (unsigned)-1");
+
+	printf("ft: "); ft_ret = ft_printf("%x%x%x\n", 10, 11, 12);
+	printf("std: "); std_ret = printf("%x%x%x\n", 10, 11, 12);
+	compare_return(ft_ret, std_ret, "multiple hex");
+
+	/* ==================== UPPERCASE HEX TESTS ==================== */
+	print_header("UPPERCASE HEX (%X) TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%X\n", 0);
+	printf("std: "); std_ret = printf("%X\n", 0);
+	compare_return(ft_ret, std_ret, "HEX zero");
+
+	printf("ft: "); ft_ret = ft_printf("%X\n", 10);
+	printf("std: "); std_ret = printf("%X\n", 10);
+	compare_return(ft_ret, std_ret, "HEX 10 (A)");
+
+	printf("ft: "); ft_ret = ft_printf("%X\n", 15);
+	printf("std: "); std_ret = printf("%X\n", 15);
+	compare_return(ft_ret, std_ret, "HEX 15 (F)");
+
+	printf("ft: "); ft_ret = ft_printf("%X\n", 255);
+	printf("std: "); std_ret = printf("%X\n", 255);
+	compare_return(ft_ret, std_ret, "HEX 255 (FF)");
+
+	printf("ft: "); ft_ret = ft_printf("%X\n", UINT_MAX);
+	printf("std: "); std_ret = printf("%X\n", UINT_MAX);
+	compare_return(ft_ret, std_ret, "HEX UINT_MAX");
+
+	printf("ft: "); ft_ret = ft_printf("%X\n", 0xDEADBEEF);
+	printf("std: "); std_ret = printf("%X\n", 0xDEADBEEF);
+	compare_return(ft_ret, std_ret, "HEX DEADBEEF");
+
+	printf("ft: "); ft_ret = ft_printf("%X%X%X\n", 10, 11, 12);
+	printf("std: "); std_ret = printf("%X%X%X\n", 10, 11, 12);
+	compare_return(ft_ret, std_ret, "multiple HEX");
+
+	/* ==================== PERCENT TESTS ==================== */
+	print_header("PERCENT (%%) TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%%\n");
+	printf("std: "); std_ret = printf("%%\n");
+	compare_return(ft_ret, std_ret, "single percent");
+
+	printf("ft: "); ft_ret = ft_printf("%%%%\n");
+	printf("std: "); std_ret = printf("%%%%\n");
+	compare_return(ft_ret, std_ret, "double percent");
+
+	printf("ft: "); ft_ret = ft_printf("100%%\n");
+	printf("std: "); std_ret = printf("100%%\n");
+	compare_return(ft_ret, std_ret, "100%");
+
+	printf("ft: "); ft_ret = ft_printf("%%100\n");
+	printf("std: "); std_ret = printf("%%100\n");
+	compare_return(ft_ret, std_ret, "%100");
+
+	printf("ft: "); ft_ret = ft_printf("50%% off\n");
+	printf("std: "); std_ret = printf("50%% off\n");
+	compare_return(ft_ret, std_ret, "50% off");
+
+	/* ==================== MIXED TESTS ==================== */
+	print_header("MIXED FORMAT TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("%c%s%d\n", 'A', "BC", 123);
+	printf("std: "); std_ret = printf("%c%s%d\n", 'A', "BC", 123);
+	compare_return(ft_ret, std_ret, "char + string + decimal");
+
+	printf("ft: "); ft_ret = ft_printf("char: %c, str: %s, num: %d\n", 'X', "test", 42);
+	printf("std: "); std_ret = printf("char: %c, str: %s, num: %d\n", 'X', "test", 42);
+	compare_return(ft_ret, std_ret, "with labels");
+
+	printf("ft: "); ft_ret = ft_printf("%d %i %u %x %X\n", -42, 42, 42, 42, 42);
+	printf("std: "); std_ret = printf("%d %i %u %x %X\n", -42, 42, 42, 42, 42);
+	compare_return(ft_ret, std_ret, "all number formats");
+
+	printf("ft: "); ft_ret = ft_printf("ptr: %p, str: %s, %%\n", &test_int, "hello");
+	printf("std: "); std_ret = printf("ptr: %p, str: %s, %%\n", &test_int, "hello");
+	compare_return(ft_ret, std_ret, "ptr + str + percent");
+
+	printf("ft: "); ft_ret = ft_printf("%s%s%s%s%s\n", "a", "b", "c", "d", "e");
+	printf("std: "); std_ret = printf("%s%s%s%s%s\n", "a", "b", "c", "d", "e");
+	compare_return(ft_ret, std_ret, "many strings");
+
+	printf("ft: "); ft_ret = ft_printf("%d%d%d%d%d%d%d%d%d%d\n", 0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
+	printf("std: "); std_ret = printf("%d%d%d%d%d%d%d%d%d%d\n", 0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
+	compare_return(ft_ret, std_ret, "many decimals");
+
+	/* ==================== NO FORMAT SPECIFIER TESTS ==================== */
+	print_header("NO FORMAT SPECIFIER TESTS");
+
+	printf("ft: "); ft_ret = ft_printf("Hello World\n");
+	printf("std: "); std_ret = printf("Hello World\n");
+	compare_return(ft_ret, std_ret, "plain string no format");
+
+	printf("ft: "); ft_ret = ft_printf("\n");
+	printf("std: "); std_ret = printf("\n");
+	compare_return(ft_ret, std_ret, "only newline");
+
+	printf("ft: "); ft_ret = ft_printf("");
+	printf("std: "); std_ret = printf("");
+	compare_return(ft_ret, std_ret, "empty string");
+
+	printf("ft: "); ft_ret = ft_printf("   \t\t   \n");
+	printf("std: "); std_ret = printf("   \t\t   \n");
+	compare_return(ft_ret, std_ret, "whitespace only");
+
+	/* ==================== EDGE CASE COMBINATIONS ==================== */
+	print_header("EDGE CASE COMBINATIONS");
+
+	printf("ft: "); ft_ret = ft_printf("%c%c%c%c%c\n", 0, 'a', 0, 'b', 0);
+	printf("std: "); std_ret = printf("%c%c%c%c%c\n", 0, 'a', 0, 'b', 0);
+	compare_return(ft_ret, std_ret, "null chars between chars");
+
+	printf("ft: "); ft_ret = ft_printf("%d%s%d\n", INT_MIN, " to ", INT_MAX);
+	printf("std: "); std_ret = printf("%d%s%d\n", INT_MIN, " to ", INT_MAX);
+	compare_return(ft_ret, std_ret, "INT_MIN to INT_MAX");
+
+	printf("ft: "); ft_ret = ft_printf("%x%X%x%X\n", 0xabcd, 0xABCD, 0xef, 0xEF);
+	printf("std: "); std_ret = printf("%x%X%x%X\n", 0xabcd, 0xABCD, 0xef, 0xEF);
+	compare_return(ft_ret, std_ret, "mixed case hex");
+
+	printf("ft: "); ft_ret = ft_printf("%u%u\n", 0, UINT_MAX);
+	printf("std: "); std_ret = printf("%u%u\n", 0, UINT_MAX);
+	compare_return(ft_ret, std_ret, "0 and UINT_MAX");
+
+	printf("ft: "); ft_ret = ft_printf("%%%c%%\n", 'X');
+	printf("std: "); std_ret = printf("%%%c%%\n", 'X');
+	compare_return(ft_ret, std_ret, "percent char percent");
+
+	printf("ft: "); ft_ret = ft_printf("%s%p%s\n", "addr:", &test_int, ":end");
+	printf("std: "); std_ret = printf("%s%p%s\n", "addr:", &test_int, ":end");
+	compare_return(ft_ret, std_ret, "string ptr string");
+
+	/* ==================== CONSECUTIVE SPECIFIERS ==================== */
+	print_header("CONSECUTIVE SPECIFIERS");
+
+	printf("ft: "); ft_ret = ft_printf("%d%d\n", 0, 0);
+	printf("std: "); std_ret = printf("%d%d\n", 0, 0);
+	compare_return(ft_ret, std_ret, "two zeros");
+
+	printf("ft: "); ft_ret = ft_printf("%s%s\n", "", "");
+	printf("std: "); std_ret = printf("%s%s\n", "", "");
+	compare_return(ft_ret, std_ret, "two empty strings");
+
+	printf("ft: "); ft_ret = ft_printf("%p%p%p\n", null_ptr, null_ptr, null_ptr);
+	printf("std: "); std_ret = printf("%p%p%p\n", null_ptr, null_ptr, null_ptr);
+	compare_return(ft_ret, std_ret, "three null pointers");
+
+	/* ==================== SUMMARY ==================== */
+	printf("\n%s╔══════════════════════════════════════════════════════════╗%s\n", YELLOW, RESET);
+	printf("%s║                      TEST SUMMARY                         ║%s\n", YELLOW, RESET);
+	printf("%s╚══════════════════════════════════════════════════════════╝%s\n", YELLOW, RESET);
+	printf("\nTotal: %d tests | ", g_tests);
+	if (g_passed == g_tests)
+		printf("%sPassed: %d%s | ", GREEN, g_passed, RESET);
+	else
+		printf("%sPassed: %d%s | ", YELLOW, g_passed, RESET);
+	if (g_tests - g_passed > 0)
+		printf("%sFailed: %d%s\n", RED, g_tests - g_passed, RESET);
+	else
+		printf("%sFailed: %d%s\n", GREEN, g_tests - g_passed, RESET);
+
+	if (g_passed == g_tests)
+		printf("\n%s✓ All tests passed!%s\n\n", GREEN, RESET);
+	else
+		printf("\n%s✗ Some tests failed!%s\n\n", RED, RESET);
+
+	return (g_tests - g_passed);
+}
diff --git a/run.sh b/run.sh
new file mode 100755
index 0000000..32e956a
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[0;33m'
+NC='\033[0m'
+
+echo -e "${YELLOW}========================================${NC}"
+echo -e "${YELLOW}    ft_printf Test Compilation Script   ${NC}"
+echo -e "${YELLOW}========================================${NC}"
+
+# Build the library first
+echo -e "\n${YELLOW}[1/3] Building libftprintf.a...${NC}"
+make -s
+if [ $? -ne 0 ]; then
+    echo -e "${RED}Error: Failed to build libftprintf.a${NC}"
+    exit 1
+fi
+echo -e "${GREEN}✓ Library built successfully${NC}"
+
+# Compile main.c
+echo -e "\n${YELLOW}[2/3] Compiling main.c...${NC}"
+cc -Wall -Wextra -Werror -I. -Ilibft main.c -L. -lftprintf -Llibft -lft -o test_printf
+if [ $? -ne 0 ]; then
+    echo -e "${RED}Error: Failed to compile main.c${NC}"
+    exit 1
+fi
+echo -e "${GREEN}✓ Test program compiled successfully${NC}"
+
+# Run tests
+echo -e "\n${YELLOW}[3/3] Running tests...${NC}"
+echo -e "${YELLOW}========================================${NC}\n"
+./test_printf
+exit_code=$?
+
+# Cleanup option
+echo -e "\n${YELLOW}========================================${NC}"
+if [ $exit_code -eq 0 ]; then
+    echo -e "${GREEN}All tests passed!${NC}"
+else
+    echo -e "${RED}$exit_code test(s) failed!${NC}"
+fi
+
+# Ask for cleanup
+read -p "Clean up test binary? [y/N] " -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    rm -f test_printf
+    echo -e "${GREEN}✓ Cleaned up${NC}"
+fi
+
+exit $exit_code