nt_printf - Custom printf Implementation

nt_printf is a custom implementation of the standard printf function in C, designed to handle various format specifiers and print outputs to the console.
This is my first C project, the goal was to start learning the language.

Project	nt_printf
Open	2025-03-31
Closed	2025-06-30 22:31 CEST (UTC+2)

Features

• Supports the standard format specifiers:
  • %% - Literal percent sign (%)
  • %c - Character
  • %s - String
  • %d - Decimal integer
  • %i - Integer
  • %u - Unsigned integer
  • %x - Hexadecimal (lowercase) (unsigned integer)
  • %X - Hexadecimal (uppercase) (unsigned integer)
  • %p - Pointer address
  • %o - Octal (unsigned integer)

Installation (with GCC compiler)

1. Clone this repository:

   git clone https://github.com/Ntalcme/nt_printf.git

2. Navigate into the project directory:

   cd nt_printf

3. Build the static library using make:

   make

This will generate a static library file named libntprintf.a in the project directory.

4. Include the library in your project:

   • Copy the libntprintf.a file to your project's directory or link it during compilation.

   • Include the nt_printf.h header file in your C source files.

Example compilation in your project:

gcc your_program.c -I./path_to_nt_printf -L./path_to_nt_printf -lntprintf -o your_program

Where ./path_to_nt_printf is the path where you placed the libntprintf.a file.

Usage

Once you've linked the libntprintf.a library, you can use it just like the standard printf function. Include the nt_printf.h header and call nt_printf() with your desired format specifiers:

#include "nt_printf.h"

int main(void)
{
    nt_printf("Hello, %s! Your score is %d.\n", "Ntalcme", 12);
    nt_printf("Displaying percentage: %%\n");
    return 0;
}

This will print:

Hello, Ntalcme! Your score is 12.
Displaying percentage: %

License

This project is licensed under the BSD-3-Clause License - see the LICENSE file for details.

Author

Ntalcme

Acknowledgements

• Inspired by the original printf function in the C standard library.

• Special thanks to Panda for teaching me !

• Special thanks to the open-source community for inspiration !