Answers for "dynamic memory allocation cpp"

dynamic memory management c++

// declare an int pointer
int* pointVar;

// dynamically allocate memory
// using the new keyword 
pointVar = new int;

// assign value to allocated memory
*pointVar = 45;

dynamic memory allocation in c

C Dynamic Memory Allocation can be defined as a procedure in which the size of a data structure (like Array) is changed during the runtime.
C provides some functions to achieve these tasks. There are 4 library functions provided by C defined under <stdlib.h> header file to facilitate dynamic memory allocation in C programming. They are: 
 

malloc()
calloc()
free()
realloc()