Dynamic memory allocation

As the name suggests, dynamic memory allocation is the concept of allocating memory at runtime. Unlike static memory allocation, where the memory is prebooked, dynamic memory allocation can be booked as and when required. The size of memory that is statically allocated cannot be increased or decreased, whereas the size of dynamically allocated memory blocks can be increased and decreased as per your requirements. Additionally, when processing is over, the dynamically allocated memory can be freed so that it can be used by other applications. The following subsections describe several functions that are required in dynamic memory allocation.

malloc()

This function allocates memory dynamically, that...