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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.

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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.  

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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.

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