Thread: Problem in Reading values from structure

Hi all

I have written the code for writing values to structure and then reading from it but I am facing some problem in that.

1) When I try to read the values from stdin, it read first value correctly but for second loop it directly ask for "age" input skipping "name".

First Loop:

Enter Name:ABC

Enter Age:12

//Second Loop:

Enter Name:
Enter Age: / / Directly come here. Don't know why

2) Secondly, I am writing the code to add values in a structure by increasing the size of structure
For example,

In first loop, value stored from 1 to 100 and in second loop value should store from 101 to 200.
and at the end I assign the base address of structure to a pointer.

Ex.
.

ABC 12 XYZ 14

The code is as follow:

Code:

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

static int count = 0;

struct test
{
   int age;
   char name[1000];
};


void writeToStruct(struct test **ptr)
{
  
   int i,size_struct=0,len = 0;
   struct test *p = NULL;
   struct test *q = NULL;
   struct test *t = NULL;
   char name[1000];
 
   if ( count != 2 )
   {
     
     size_struct = sizeof(test)*(++count);
     len = sizeof(test);
     p = (struct test *)malloc( sizeof(size_struct));
     memcpy(p,ptr,size_struct);  
     t = (struct test *)malloc( sizeof(len));
     
     printf("\n Enter Name:");
     gets(name);
     printf("\n Enter Age:");
     scanf("%d",&i);
     t->age = i;
     strcpy(t->name,name);
     memcpy(p+size_struct,t,len);
     *ptr = p;
     
     
   }
 
}


void readFromStruct(struct test **ptr)
{
   int i =0;

   for ( i =0;i<2; i++)
  {
    printf("\n %s %d\n",(*ptr)->name,(*ptr)->age);
  } 
}


int main()
{

  test *t=NULL;
  int i = 0;

  for ( i =0;i<2; i++)
  {
    writeToStruct(&t);
  }

  readFromStruct(&t);
 

}

I am getting segmentation fault.
Any help is will be greatly appreciated.

Thanks

Read FAQ #1: Cprogramming.com FAQ > Why gets() is bad / Buffer Overflows
Read FAQ #2: Question 12.18a

hi
Solved problem 1.

but need help in second one.

Thanks