Free memory in dynamic allocation

74-free.c

@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+
+	// This pointer will hold the
+	// base address of the block created
+	int *ptr, *ptr1;
+	int n, i;
+
+	// Get the number of elements for the array
+	n = 5;
+	printf("Enter number of elements: %d\n", n);
+
+	// Dynamically allocate memory using malloc()
+	ptr = (int*)malloc(n * sizeof(int));
+
+	// Dynamically allocate memory using calloc()
+	ptr1 = (int*)calloc(n, sizeof(int));
+
+	// Check if the memory has been successfully
+	// allocated by malloc or not
+	if (ptr == NULL || ptr1 == NULL) {
+		printf("Memory not allocated.\n");
+		exit(0);
+	}
+	else {
+
+		// Memory has been successfully allocated
+		printf("Memory successfully allocated using malloc.\n");
+
+		// Free the memory
+		free(ptr);
+		printf("Malloc Memory successfully freed.\n");
+
+		// Memory has been successfully allocated
+		printf("\nMemory successfully allocated using calloc.\n");
+
+		// Free the memory
+		free(ptr1);
+		printf("Calloc Memory successfully freed.\n");
+	}
+
+	return 0;
+}