https://github.com/fyang42/42sg-libft

A custom library of general purpose C functions that will be called on in future projects in the C programming language.
https://github.com/fyang42/42sg-libft

42-school 42cursus 42projects 42school 42singapore libft

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A custom library of general purpose C functions that will be called on in future projects in the C programming language.

• Host: GitHub
• URL: https://github.com/fyang42/42sg-libft
• Owner: fyang42
• Created: 2024-07-31T20:08:18.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2024-07-31T23:39:03.000Z (5 months ago)
• Last Synced: 2024-08-09T12:24:52.068Z (5 months ago)
• Topics: 42-school, 42cursus, 42projects, 42school, 42singapore, libft
• Language: C
• Homepage:
• Size: 38.1 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
### Program Name: libft.a

This custom C library includes the following components:

* A Makefile to compile the library.  

* A header file libft.h, containing the prototypes for all functions and necessary includes.  

* A total of 43 custom C functions that do not call on external functions from C libraries except for write() and memory manipulation with malloc() and free().  

	- 32 custom implementations of Libc C functions that have the same prototypes and behaviours as standard C library functions, but with the prefix ft_.  

	- 11 additional functions are additional utilities not found in the standard C library or variations thereof.

#### 32 Libc Functions

##### Character Classification and Conversion Functions

		ft_isalpha: Checks if a character is an alphabetic letter.  

		ft_isdigit: Checks if a character is a decimal digit.  

		ft_isalnum: Checks if a character is alphanumeric (letter or digit).  

		ft_isascii: Checks if a character is an ASCII character.  

		ft_isprint: Checks if a character is printable, including space.  

  ##### String and Memory Functions

    	ft_strlen: Computes the length of a string.

    	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_memmove: Moves a block of memory, handling overlap.

    	ft_strlcpy: Copies a string to a destination buffer, ensuring null-termination.

    	ft_strlcat: Concatenates a string to a destination buffer, ensuring null-termination.

  ##### Character Conversion Functions

    	ft_toupper: Converts a character to uppercase.

    	ft_tolower: Converts a character to lowercase.

  ##### String Search and Comparison Functions

		ft_strchr: Locates the first occurrence of a character in a string.  

		ft_strrchr: Locates the last occurrence of a character in a string.  

		ft_strncmp: Compares two strings up to a specified number of characters.  

 ##### Memory Search and Comparison Functions

		ft_memchr: Locates the first occurrence of a byte in a block of memory.  

		ft_memcmp: Compares two blocks of memory.  

 ##### String Substring and Conversion Functions

    	ft_strnstr: Locates a substring in a string, where not more than a specified number of characters are searched.

    	ft_atoi: Converts a string to an integer.

 ##### Memory Allocation Functions (using malloc)

		ft_calloc: Allocates memory for an array of elements and initializes it to zero.

		ft_strdup: Duplicates a string, allocating memory for the new string.

 #### Additional Functions (11 Functions)

    	ft_substr: Extracts a substring from a string.  

    	ft_strjoin: Concatenates two strings into a new string.  

    	ft_strtrim: Trims leading and trailing characters from a string.  

    	ft_split: Splits a string into an array of strings based on a delimiter.  

    	ft_itoa: Converts an integer to a string.  

    	ft_strmapi: Applies a function to each character of a string, creating a new string.  

    	ft_striteri: Applies a function to each character of a string, modifying the string in place.  

    	ft_putchar_fd: Outputs a character to a file descriptor.  

    	ft_putstr_fd: Outputs a string to a file descriptor.  

    	ft_putendl_fd: Outputs a string to a file descriptor followed by a newline.  

    	ft_putnbr_fd: Outputs an integer to a file descriptor.