dynamic memory allocation c++
string* str_arr = nullptr;
str_arr = new string[10];
//initialize
str_arr[0] = "Hello";
str_arr[1] = " World!";dynamic memory allocation c++
string* str_arr = nullptr;
str_arr = new string[10];
//initialize
str_arr[0] = "Hello";
str_arr[1] = " World!";dynamic memory allocation c
#include <stdio.h>
#include <stdlib.h>
int main()
{
// This pointer will hold the
// base address of the block created
int* ptr;
int n, i;
// Get the number of elements for the array
printf("Enter number of elements:");
scanf("%d",&n);
printf("Entered number of elements: %d\n", n);
// Dynamically allocate memory using malloc()
ptr = (int*)malloc(n * sizeof(int));
// Check if the memory has been successfully
// allocated by malloc or not
if (ptr == NULL) {
printf("Memory not allocated.\n");
exit(0);
}
else {
// Memory has been successfully allocated
printf("Memory successfully allocated using malloc.\n");
// Get the elements of the array
for (i = 0; i < n; ++i) {
ptr[i] = i + 1;
}
// Print the elements of the array
printf("The elements of the array are: ");
for (i = 0; i < n; ++i) {
printf("%d, ", ptr[i]);
}
}
return 0;
}Copyright © 2021 Codeinu
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