INTERVIEW QUESTIONS C STRUCTURES IN C DETAILS

Question: Can we use functions within a structure?

Answer: No,You cannot use functions within structure,it is compilation error but in c++ you can do it.

No,You cannot use functions within structure,it is compilation error but in c++ you can do it. Source: CoolInterview.com

No,You can't have any function in structure and union. Source: CoolInterview.com

In 'C' we can't use functions within a Structure, where as in C++ we can use. Source: CoolInterview.com

Yes we can use in inside the structure. Source: CoolInterview.com

We can't declare functions in side a structure. but we can take function pointers in structs;
Ex:

struct ex
{
int i;
void (*fun)();
};
void fun1()
{
printf("
This is a function
");
}
main()
{
struct ex e;
e.fun=fun1;
e.fun();
}
Source: CoolInterview.com

we can't declare functions in side a structure. but we can take function pointers in structs;
Ex:

struct ex
{
int i;
void (*fun)();
};
void fun1()
{
printf("
This is a function
");
}
main()
{
struct ex e;
e.fun=fun1;
e.fun();
}
Source: CoolInterview.com

In Case of C we can't use that but in case of c++ We can. Source: CoolInterview.com

/*Yes we can use functions inside structures.*/

#include<stdio.h>
#include<conio.h>
struct student
{
int name[25],fathername[25];
int rollnumber;
void showstudent()
{
printf("The Student name is %s");
printf("The student's father is %s);
printf("His roll number is %d");
}
}s; /* s is a single element of the structure student */

void main()
{ printf("enter the name,fathername,rollnumber
");
gets(s.name);
gets(s.fathername);
scanf("%d",&s.rollnumber);
s.showstudent();
getch();
}
/*Here in the above example void showstudent is a function which is inside the structure student.*/
Source: CoolInterview.com

A structure cannot hold the functions. Since by default structure access is public an Object can access any of the functions declared outside. Source: CoolInterview.com

one option is; we can place "pointer to a function" as a part of the structure to serve the purpose. Source: CoolInterview.com

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