how to use vector of user defined type(user defined class )

[abbas khoshnevi]

hi

I am using myclass to define a vector .
but I can not write values of member variable 'a' .
please tell me how I van use member variable 'a' in printf command.

thanks a lot

#include <vector>
#include <stdio.h>
class myclass{
int a;
}
using namespace std;

int main()
{

myclass m;

std::vector<myclass> v;
m.a=10;
v.push_back(m);
m.a=20;
v.push_back(m);
vector (myclass) :: iterator it;
myclass *s;
for (it=v.begin();it<v.end;it++)
{
   s=it;
   printf("a=%d\n",s->a)
}

}

[newb16]

What is 'I can not' ? You don't know how to do it, program doesn't compile (link) with this and that error, program aborts at runtime with this and that message, something els? Not that I don't know about default access modifier for classes as opposed to structs, but....

[weaknessforcats]

There are a ton of coding errors in your sample.

The problem is not with vector. It's with your not using correct C++ syntax.

I suggest you compile the code and fix the first error. Then recompile and fix the next first error. Eventually, all of the errors will go away and I suspect you will have answered your own question.

[Oralloy]

This page and its children will help you a lot.

C++ Vectors

Also, you need to run your code through a compiler before bringing questions here. What you have is utterly untested.