Declaration

void free(void* vpMemory);

Description

Deallocates a block of dynamically allocated memory that was previously allocated by calloc, malloc, or realloc.

Example

#include <iostream>
#include <cstdlib>

int main() {
    using namespace std;

    int* ipArray = (int*)calloc(7, sizeof(int));
    // Output the elements to verift that they have been set to zero.
    for (int iIndex = 0; iIndex < 7; ++iIndex) {
        cout << "  " << ipArray[iIndex];
    }
    cout << endl;
    // Deallocate the memory
    free(ipArray);

    return 0;
}

Output