ft_printf

Because putnbr and putstr aren't enough

About · Usage · Testing

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💡 About the project

This project is pretty straight forward. You will recode printf. You will mainly learn how to use variadic arguments.

This project consists of coding a library that contains a simplified version of the printf function, implementing basic format specifiers and learning how to handle variadic arguments in C.

Implemented specifiers:

• %c - Character
• %s - String
• %p - Pointer address
• %d - Decimal integer
• %i - Integer
• %u - Unsigned decimal
• %x - Hexadecimal (lowercase)
• %X - Hexadecimal (uppercase)
• %% - Percent sign

🛠️ Usage

Requirements

The function is written in C language and thus needs the gcc compiler and some standard C libraries to run.

Instructions

1. Compiling the library

To compile, go to the library path and run:

$ make

2. Using it in your code

To use the library functions in your code, simply include its header:

#include "ft_printf.h"

Example usage:

#include "ft_printf.h"

int main(void)
{
    ft_printf("Hello %s!\n", "world");
    ft_printf("Number: %d\n", 42);
    ft_printf("Hex: %x\n", 255);
    return (0);
}

📋 Testing

You can use this third party tester to fully test the project:

• Tripouille/printfTester

Project Structure

• ft_printf.c - Main printf function implementation
• ft_printf.h - Header file with function prototypes
• ft_putchar.c - Character output function
• ft_puthex.c - Hexadecimal output functions
• ft_putnbr.c - Number output functions
• ft_putstr.c - String output function
• Makefile - Compilation rules