42-Seoul-Cursus / ft_printf

My printf function

ft_printf

The ft_printf project is part of the 42 school curriculum, challenging students to implement their own version of the standard C library's printf function. This project aims to deepen understanding of variadic functions and improve string manipulation skills in C.

Overview

The ft_printf function mimics the behavior of the standard printf function and supports a subset of its format specifiers. Key features include:

• String formatting: %s, %c, %d, %i, %u, %x, %X, %p, and more.
• Width and precision: Specifying field width and precision with the * or numeric values.
• sFlags: Supporting flags such as 0, -, +, (space), and #.

Usage

1. Clone the project:

git clone https://github.com/seungwonme/ft_printf

2. Navigate to the project directory:

cd ft_printf && rm -rf .git

3. Compile the library:

make

4. Link the library in your project and include the header file:

#include "ft_printf.h"

int main(void)
{
    ft_printf("Formatted output: %s %d\n", "Hello", 42);
    return 0;
}

• To clean up object files:

make clean

• To delete all build files:

make fclean

• To clean and rebuild the library:

make re

Supported Format Specifiers

• %c: Character
• %s: String
• %d and %i: Signed decimal integer
• %u: Unsigned decimal integer
• %x and %X: Hexadecimal integer
• %p: Pointer address

For a complete list of supported features, refer to the ft_printf implementation.