What are the functions of the malloc function in the C language?

The functionality of the malloc function includes:

1. Dynamic memory allocation: The malloc function can dynamically allocate a specified amount of memory space during program execution, allowing this memory space to be used anywhere in the program.
2. The malloc function returns a pointer that points to the allocated memory, which can be used to access and manipulate the allocated memory space.
3. The size of the memory can be freely adjusted as needed: Memory allocation can be adjusted according to actual requirements to meet different needs.
4. Dynamically allocated memory can be reused: Memory allocated using the malloc function can be continued to be used when not needed, unlike memory allocated on the stack, which is automatically released after the function ends.
5. Multiple contiguous memory spaces can be dynamically allocated: malloc function can be used to dynamically allocate multiple contiguous memory spaces, such as arrays, strings, etc.