Create Dynamic Memory Allocation for Structure

Author: Prashantupa

Dynamic Memory Allocation for Structure

@@ -0,0 +1,44 @@
+//C Program to Store Information Using Structures with Dynamically Memory Allocation
+
+#include <stdio.h>
+#include<stdlib.h>
+struct course
+{
+   int marks;
+   char subject[30];
+};
+int main()
+{
+   struct course *ptr;
+   int i, noOfRecords;
+   printf("Enter number of records: ");
+   scanf("%d", &noOfRecords);
+   // Allocates the memory for noOfRecords structures with pointer ptr pointing to the base address.
+   ptr = (struct course*) malloc (noOfRecords * sizeof(struct course));
+   for(i = 0; i < noOfRecords; ++i)
+   {
+       printf("Enter name of the subject and marks respectively:\n");
+       scanf("%s %d", &(ptr+i)->subject, &(ptr+i)->marks);
+   }
+   printf("Displaying Information:\n");
+   for(i = 0; i < noOfRecords ; ++i)
+       printf("%s\t%d\n", (ptr+i)->subject, (ptr+i)->marks);
+   return 0;
+}
+
+/*output
+
+Enter number of records: 2
+Enter name of the subject and marks respectively:
+Programming
+22
+Enter name of the subject and marks respectively:
+Structure
+33
+
+Displaying Information:
+Programming      22
+Structure        33 
+*/
+
+