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https://github.com/maximegdfr/libft_42


https://github.com/maximegdfr/libft_42

42 42cursus 42projects 42school c-language libft libft42 library

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README 

          
# Libft - 42 School Project





  




This repository contains all archives for the project __libft__ in the __42 School Le Havre__ common tree. It's a custom-made library of useful functions in __C language__. The repository includes the `Makefile` and the `libft.h` library.





	About

	 · 

	Index

	 · 

	Requirements

	 · 

	Instructions

	 · 

	Testing




## About



This project is a __C library__ of useful functions that are allowed to be used in future __42 School__ projects. Having access to this library will make the coding process in upcoming projects more efficient. The goal of rewriting these functions is to gain a better understanding of them and to build a wide range of utilities for future projects, enabling us to use everything we've coded ourselves.



The code in this repository follows the rules of the Norminette. 😮‍💨



## Index

### Functions from `` library

* [`ft_isascii`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_isascii.c) - Test a character to see if it's a 7-bit ASCII character.

* [`ft_isalpha`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_isalpha.c) - Test a character to see if it's alphabetic.

* [`ft_isdigit`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_isdigit.c) - Test a character to see if it's a decimal digit.

* [`ft_isalnum`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_isalnum.c) - Test a character to see if it's alphanumeric.

* [`ft_isprint`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_isprint.c) - Test a character to see if it's any printable character, including a space.

* [`ft_tolower`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_tolower.c) - Convert a character to lowercase.

* [`ft_toupper`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_toupper.c) - Convert a character to uppercase.



### Functions from `` library

* [`ft_atoi`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_atoi.c) - Convert ASCII string to integer.

* [`ft_calloc`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_calloc.c) - Allocate space for an array and initializes it to 0. This function and `malloc` return a void pointer, that had no associated data type with it. A void pointer can hold address of any type and can be typecasted to any type.



### Functions from `` library

* [`ft_bzero`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_bzero.c) - Set the first part of an object to null bytes (filling it with zeroes).

* [`ft_memset`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_memset.c) - Set memory to a given value.

* [`ft_memchr`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_memchr.c) - Find the first occurrence of a character in a buffer (locate byte in byte string).

* [`ft_memcmp`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_memcmp.c) - Compare the bytes in two buffers.

* [`ft_memmove`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_memmove.c) - Copy bytes from one buffer to another, handling overlapping memory correctly.

* [`ft_memcpy`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_memcpy.c) - Copy bytes from one buffer to another.



### Functions from `` library

* [`ft_strlen`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strlen.c) - Get the length of a string.

* [`ft_strchr`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strchr.c) - Find the first occurrence of a character in a string.

* [`ft_strrchr`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strrchr.c) - Find the last occurrence of a character in a string.

* [`ft_strnstr`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strnstr.c) - Locate a substring in a string.

* [`ft_strncmp`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strncmp.c) - Compare two strings, up to a given length.

* [`ft_strdup`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strdup.c) - Create a duplicate of a string, using `malloc`.

* [`ft_strlcpy`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strlcpy.c) - Size-bounded string copy.

* [`ft_strlcat`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strlcat.c) - Size-bounded string concatenation.



### Non-standard functions

* [`ft_itoa`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_itoa.c) - Convert integer to ASCII string.

* [`ft_substr`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_substr.c) - Get a substring from string.

* [`ft_strtrim`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strtrim.c) - Trim beginning and end of string with the specified substring.

* [`ft_strjoin`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strjoin.c) - Concatenate two strings into a new string, using `calloc`.

* [`ft_split`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_split.c) - Split string, with specified character as delimiter, into an array of strings.

* [`ft_strmapi`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_strmapi.c) - Create new string from a string modified with a specified function.

* [`ft_striteri`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_striteri.c) - Modify a string with a given function.

* [`ft_putchar_fd`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_putchar_fd.c) - Output a character to given file.

* [`ft_putstr_fd`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_putstr_fd.c) - Output string to given file.

* [`ft_putendl_fd`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_putendl_fd.c) - Output string to given file with newline.

* [`ft_putnbr_fd`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_putnbr_fd.c) - Output integer to given file.



### Linked list functions *(bonus)*

* [`ft_lstnew`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstnew.c) - Create new list.

* [`ft_lstsize`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstsize.c) - Count elements of a list.

* [`ft_lstlast`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstlast.c) - Find last element of list.

* [`ft_lstadd_back`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstadd_back.c) - Add new element at end of list.

* [`ft_lstadd_front`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstadd_front.c) - Add new element at beginning of list.

* [`ft_lstdelone`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstdelone.c) - Delete element from list.

* [`ft_lstclear`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstclear.c) - Delete sequence of elements of list from a starting point.

* [`ft_lstiter`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstiter.c) - Apply function to content of all list's elements.

* [`ft_lstmap`](https://github.com/MaximeGDFR/Libft_42/blob/main/ft_lstmap.c) - Apply function to content of all list's elements into new list.



## Requirements

The library is written in __C language__ and needs the `gcc` compiler, with `` and `` standard libraries to run.



## Instructions



### 1. Compiling the library



To compile the library, go to its path and run:



For __basic__ functions:

```

$ make

```



For __bonus__ functions:

```

$ make bonus

```



### 2. Cleaning all binary (.o) and executable files (.a)



To delete all files generated with make, go to the path and run:

```

$ make fclean

```



### 3. Using it in your code



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

```

#include "libft.h"

```



## Testing

This library have been tested with [Francinette](https://github.com/xicodomingues/francinette).