Question

How to use allocate and use struct with pointers in C

Answer 1

#include <stdio.h>
#include <stdlib.h>

struct person 
{
   int age;
   char name[25];
};

#define LEN 2

int main(void)
{
   struct person *p;

   p = (struct person*) malloc(LEN * sizeof(struct person));

   for (int i = 0; i < LEN; i++)
   {
       printf("Enter age and name:\n");
       scanf("%d%s", &(p+i)->age, (p+i)->name);
   }

   printf("\nprint:\n");
   for (int i = 0; i < LEN; i++)
       printf("%d - %s\n", (p+i)->age, (p+i)->name);
       
   return 0;
} 
    
/*
run:

Enter age and name:
50 tom
Enter age and name:
45 merlin

print:
50 - tom
45 - merlin
   
*/

 

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