0x0B-malloc_free

0x0B. C - malloc, free ✨

This directory houses a collection of C programs that demonstrate the usage of dynamic memory allocation and deallocation using malloc and free functions. Each program addresses different memory-related tasks. Explore each task to enhance your understanding of memory management in C.

Task 0 - Create an Array of Chars 📚

File: 0-create_array.c
📝 Description: Creates an array of chars, initializes it with a specific char, and returns a pointer to the array. Returns NULL if size is 0 or if allocation fails.
💼 Prototype: char *create_array(unsigned int size, char c);

---

Task 1 - Duplicate a String 📝

File: 1-strdup.c
📝 Description: Returns a pointer to a newly allocated space in memory containing a copy of the input string. Returns NULL if str is NULL or if allocation fails.
💼 Prototype: char *_strdup(char *str);

---

Task 2 - Concatenate Two Strings ➕

File: 2-str_concat.c
📝 Description: Concatenates two strings and returns a pointer to the newly allocated memory. If NULL is passed, treats it as an empty string. Returns NULL if allocation fails.
💼 Prototype: char *str_concat(char *s1, char *s2);

---

Task 3 - Allocate a 2D Array 🌟

File: 3-alloc_grid.c
📝 Description: Returns a pointer to a 2-dimensional array of integers, where each element is initialized to 0. Returns NULL if width or height is 0 or negative, or if allocation fails.
💼 Prototype: int **alloc_grid(int width, int height);

---

Task 4 - Free a 2D Array ♻️

File: 4-free_grid.c
📝 Description: Frees a 2-dimensional grid created by alloc_grid function.
💼 Prototype: void free_grid(int **grid, int height);

---

Task 5 - Concatenate All Arguments 🔗

File: 100-argstostr.c
📝 Description: Concatenates all arguments of the program into a single string, where each argument is followed by a newline character. Returns NULL if ac is 0 or if allocation fails.
💼 Prototype: char *argstostr(int ac, char **av);

---

Task 6 - Split a String into Words 📝➡️🔤

File: 101-strtow.c
📝 Description: Splits a string into words and returns an array of strings (words). Each element of the array contains a single word, null-terminated. Returns NULL if str is NULL, empty, or if allocation fails.
💼 Prototype: char **strtow(char *str);

---

Detailed Explanations 📑

For detailed explanations of each step and the commands used, you can refer to the commit descriptions in the directory's commit history. Each commit message contains a clear description of the actions taken, including the relevant commands used in the terminal.