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What is Dynamic memory allocation in C? Name the dynamic allocation functions.

Answer»

C is a language known for its low-level control over the memory allocation of variables in DMA there are two major standard library malloc() and FREE. The malloc() function takes a single INPUT parameter which tells the size of the memory requested It returns a pointer to the allocated memory. If the allocation fails, it returns NULL. The prototype for the standard library function is like this:

void *malloc(size_t size);
The free() function takes the pointer returned by malloc() and de-allocates the memory. No indication of success or failure is returned. The function prototype is like this: 

void free(void *pointer);
There are 4 library functions provided by C defined under <stdlib.h> header file to facilitate DYNAMIC memory allocation in C programming. They are:


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