Need help with C++ pairs

[wind verge]

So, was learning STL and started off with learning pairs.
my code :-

#include <iostream>
#include <utility>
using namespace std;

int main() {
    pair<int, int> p = {1, 3};
    
    cout << p.second;
    
    return 0;
}

in the video I saw, it was working correctly for him.

but in my case this error shows up while compilin - 6 29 C:\Users\ASUS\Documents\C++\vectors.cpp [Error] in C++98 'p' must be initialized by constructor, not by '{...}'

this worked with -

    pair<int, int> p;
    p.first = 1;
    p.second = 3;

but I still wanna know

why it showed that error

[gentle wigeon]

I don't think aggregate initialisation (using the curly braces to initialise values) to initialise pairs is supported in C++98. Try using C++11 instead or using the constructor syntax

pair<int, int> p(1,3);

[wind verge]

ok Thanks!

[wind verge]

and how do I put pair into pair with this ?

[wind verge]

@limber root

[limber root]

Why am I pinged here?

[wind verge]

can you help

[limber root]

I can't

[wind verge]

ok, thanks

and sorry

[gentle wigeon]

Try using make_pair in that case (I'm not sure how to use constructors in such a case, probably possible)

pair<pair<int, int>, int> = make_pair(make_pair(1,3),3);