Libft - 42 Project

Introduction

Use this libft as a static library for your future C projects. This project involves recoding a few standard C library functions as well as other utility functions that will be useful during your course.

Functions

Libc Functions

Functions from the standard C library, recoded with the same behavior:

• ft_isalpha - Check for alphabetic character.
• ft_isdigit - Check for digit (0 through 9).
• ft_isalnum - Check for alphanumeric character.
• ft_isascii - Check whether c fits into the ASCII character set.
• ft_isprint - Check for any printable character.
• ft_strlen - Calculate the length of a string.
• ft_memset - Fill memory with a constant byte.
• ft_bzero - Zero a byte string.
• ft_memcpy - Copy memory area.
• ft_memmove - Copy memory area (handles overlapping).
• ft_strlcpy - Size-bounded string copying.
• ft_strlcat - Size-bounded string concatenation.
• ft_toupper - Convert char to uppercase.
• ft_tolower - Convert char to lowercase.
• ft_strchr - Locate character in string (first occurrence).
• ft_strrchr - Locate character in string (last occurrence).
• ft_strncmp - Compare two strings.
• ft_memchr - Scan memory for a character.
• ft_memcmp - Compare memory areas.
• ft_strnstr - Locate a substring in a string.
• ft_atoi - Convert a string to an integer.
• ft_calloc - Allocate and zero-initialize memory.
• ft_strdup - Duplicate a string.

Additional Functions

Useful functions that are not part of the standard Libc:

• ft_substr - Extract a substring from a string.
• ft_strjoin - Concatenate two strings.
• ft_strtrim - Trim characters from the beginning and end of a string.
• ft_split - Split a string using a delimiter.
• ft_itoa - Convert an integer to a string.
• ft_strmapi - Apply a function to each character of a string (with index, creating new string).
• ft_striteri - Apply a function to each character of a string (with index, modifying in place).
• ft_putchar_fd - Output a char to a file descriptor.
• ft_putstr_fd - Output a string to a file descriptor.
• ft_putendl_fd - Output a string to a file descriptor, followed by a newline.
• ft_putnbr_fd - Output an integer to a file descriptor.

Bonus Functions

Functions to manipulate linked lists (t_list):

• ft_lstnew - Create a new list element.
• ft_lstadd_front - Add an element to the beginning of a list.
• ft_lstsize - Count the number of elements in a list.
• ft_lstlast - Return the last element of a list.
• ft_lstadd_back - Add an element to the end of a list.
• ft_lstdelone - Delete a list element (free content).
• ft_lstclear - Delete an entire list.
• ft_lstiter - Apply a function to each element's content.
• ft_lstmap - Apply a function to each element's content and create a new list.

Usage

Requirements

The library is written in C and requires a standard C compiler (like cc or gcc) and make.

Installation

Clone the repository and compile the library:

make

This will generate libft.a.

To compile with bonus functions:

make bonus

To clean object files:

make clean

To clean object files and the library:

make fclean

To recompile:

make re

Using in your project

Include the header in your C files:

#include "libft.h"

Compile your project with the library:

cc main.c libft.a