Structure Within Structure

**Shakira** · 11-02-2003

I am learning C from Deitel & Deitel''s How To Program book. I am trying to learn how to create a structure within a structure.

I want the user to key in the particulars like name and age, etc and use the pointers and arrow pointers to refer to the data input in the structure.

I have not finished coding yet and I faced this problem with my code.

Code:

#include<stdio.h>

struct student {
	char Name[20];
	char Surname[20];
	int studentNumber;
	struct {
		char telNumber[10];
		char Address[50];
		} personal;
} studentRecord, *studentPtr;


int main(void) 
{
	studentPtr = &studentRecord;


	printf("Enter student name: \n");
	scanf("%c", &Name);
	printf("Enter student surname: \n");
	scanf("%c", &Surname);


	return (0);


}

I haven't finished coding yet but when I compiled I received this message in my Mocrosoft Visual C++ compiler :

error C2065: 'Name' : undeclared identifier.

What is wrong with my "scanf("%c", &Name);" ?

Should I declare char Name [20] in main again after declaring it in the structure ?

I appreciate your help very much as I have no one to consult. I am learning C on my own.

**Kyro** · 11-02-2003

u need to dereference it using the structure name

Code:

	printf("Enter student name: \n");
	scanf("%c", &studentPtr->Name);
	printf("Enter student surname: \n");
	scanf("%c", &studentPtr->Surname);

**Sebastiani** · 11-02-2003

Start with the basics, first:

Code:

#define MAXLEN 128

struct Name
{
 char first[MAXLEN];
 char last[MAXLEN];
};

struct Person
{
 struct Name name;
 int age;
};

int main()
{
 struct Person p;

 strcpy(p.name.first, "Shakira");
 
 strcpy(p.name.last, "Patel"); 

 p.age = 16;

 int * age = &p.age;
 char * first = p.name.first;
 char * last = p.name.last;

 printf("Hi, I'm %s %s and I am %d", 
 first, last, *age);
}

**Sayeh** · 11-04-2003

Or, to rewrite Sebastiani's excellent example in my preferred method (which is obviously the _right_ way to do it-- grin):

Code:

#define MAXLEN 128

typedef struct NameStruc
   {
   char  first[MAXLEN];
   char  last[MAXLEN];
   }Name;

typedef struct PersonStruc
   {
    Name  name;
    int       age;
   }Person;

int main()
   {
   Person   p;
   int          *age;
   char       *first;
   char       *last;

   strcpy(p.name.first, "Shakira");
 
   strcpy(p.name.last, "Patel"); 

   p.age = 16;

   age = &p.age;
   first = p.name.first;
   last = p.name.last;

   printf("Hi, I'm %s %s and I am %d",first, last, age);
  }

enjoy.

Thread: Structure Within Structure

Thread Tools

Search Thread

Display

Structure Within Structure

Similar Threads

Problem referencing structure elements by pointer

How to call a function several times, but with a different structure as argument?

Dikumud

Serial Communications in C

C structure within structure problem, need help