Libft

Libft is a custom implementation of the standard C library functions. This project is part of the 42 curriculum and aims to deepen the understanding of C programming by recreating commonly used functions from scratch.

Table of Contents

• Introduction
• Functions
  • Memory Functions
  • String Functions
  • Character Functions
  • List Functions
• Usage
• License

Introduction

Libft is a library of functions that are commonly used in C programming. These functions include memory manipulation, string manipulation, character checks, and linked list operations. By implementing these functions, you will gain a deeper understanding of how they work and improve your C programming skills.

Functions

Memory Functions

• ft_memset: Fills a block of memory with a specified value.
• ft_bzero: Sets a block of memory to zero.
• ft_memcpy: Copies a block of memory from one location to another.
• ft_memccpy: Copies a block of memory until a specified character is found.
• ft_memmove: Copies a block of memory, handling overlapping regions correctly.
• ft_memchr: Searches for a character in a block of memory.
• ft_memcmp: Compares two blocks of memory.

String Functions

• ft_strlen: Calculates the length of a string.
• ft_strdup: Duplicates a string.
• ft_strcpy: Copies a string to another string.
• ft_strncpy: Copies a specified number of characters from one string to another.
• ft_strcat: Concatenates two strings.
• ft_strncat: Concatenates a specified number of characters from one string to another.
• ft_strlcat: Concatenates two strings, ensuring the result is null-terminated.
• ft_strchr: Searches for a character in a string.
• ft_strrchr: Searches for a character in a string, starting from the end.
• ft_strstr: Searches for a substring in a string.
• ft_strnstr: Searches for a substring in a string, within a specified length.
• ft_strcmp: Compares two strings.
• ft_strncmp: Compares two strings up to a specified number of characters.

Character Functions

• ft_isalpha: Checks if a character is an alphabetic letter.
• ft_isdigit: Checks if a character is a digit.
• ft_isalnum: Checks if a character is alphanumeric.
• ft_isascii: Checks if a character is an ASCII character.
• ft_isprint: Checks if a character is printable.
• ft_toupper: Converts a character to uppercase.
• ft_tolower: Converts a character to lowercase.

List Functions

• ft_lstnew: Creates a new list element.
• ft_lstdelone: Deletes a single list element.
• ft_lstdel: Deletes a list and its elements.
• ft_lstadd: Adds a new element to the beginning of a list.
• ft_lstiter: Iterates over a list and applies a function to each element.
• ft_lstmap: Iterates over a list, applies a function to each element, and creates a new list with the results.

Usage

To use the libft library in your project, follow these steps:

1. Clone the repository:

   git clone https://github.com/yourusername/libft.git
   

2. Navigate to the project directory:

   cd libft
   

3. Compile the library:

   make
   

4. Include the library in your project:

   #include "libft.h"

License

This project is open-source.