#include <iostream>
int main()
{
for( struct {int i; double j;} v = {0, 3.0}; v.i < 10; v.i++, v.j+=0.1)
std::cout << v.i << "," << v.j << std::endl;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgoKaW50IG1haW4oKQp7CiAgICBmb3IoIHN0cnVjdCB7aW50IGk7IGRvdWJsZSBqO30gdiA9IHswLCAzLjB9OyB2LmkgPCAxMDsgdi5pKyssIHYuais9MC4xKQogICAgICAgc3RkOjpjb3V0IDw8IHYuaSA8PCAiLCIgPDwgdi5qIDw8IHN0ZDo6ZW5kbDsgCn0=
0,3
1,3.1
2,3.2
3,3.3
4,3.4
5,3.5
6,3.6
7,3.7
8,3.8
9,3.9