using namespace std; struct student{ int roll; char name[30]; char fname[30]; float cgpa; } s[10]; int main (void) { }

Question

can anyone make this structure in descending order

Answer 1

it's actually string but there was not enough sapce in question was I write it small

Answer 2

#include <iostream>
#include <string>

using namespace std;

struct student{
int roll;
char name[30];
char fname[30];
float cgpa;
} s[10];

int main (void)
{

}
this is real structure and now I have put a code so this can come in descending order

Answer 3

it's not working

Answer 4

where???

Answer 5

I put that in compiler it's saying "no output"
which means code is right????

Answer 6

thank you very much Timon

Answer 7

Like this?

struct student {
//char arrays first
char name[30];
char fname[30];

//int and float second (they have the same size most often)
int roll;
float cgpa;
}

Why do you use a char[30] instead of a std::string? And did you know that if you really don't want to use strings you can make the first char[30] a char[32] since most devices have adress rooms which take 2 to the power of n bytes?
Btw Bjarne Stroustrup, the inventor of c++, says that you should order your structs in an intuitive order and not by size if performance is not really critical.

Answer 8

Ok, then you have the same order than with char arrays.

Answer 9

I'd do it like

#include <iostream>
#include <string>
#include <array>
using namespace std;

struct student
{
string fname;
string name;
int roll;
float cgpa;
};

array<student, 10> s;

int main()
{

}

Answer 10

Fixed, forgot ; after the struct.

Answer 11

float cgpa;
} /*here*/ ;

Answer 12

Yes, now it's right. The semicolon after /*here*/ was missing until I fixed it.

Answer 13

No problem, that's why I'm here.