Adding to a vector of pair

Question

I have a vector of pair like such:

vector> revenue;

I want to add a string and a doub

Answer 1

As many people suggested, you could use std::make_pair.

But I would like to point out another method of doing the same:

revenue.push_back({"string",map[i].second});

push_back() accepts a single parameter, so you could use "{}" to achieve this!

Answer 2

revenue.pushback("string",map[i].second);

But that says cannot take two arguments. So how can I add to this vector pair?

You're on the right path, but think about it; what does your vector hold? It certainly doesn't hold a string and an int in one position, it holds a Pair. So...

revenue.push_back( std::make_pair( "string", map[i].second ) );     

Answer 3

Or you can use initialize list:

revenue.push_back({"string", map[i].second});

Answer 4

Read the following documentation:

http://cplusplus.com/reference/std/utility/make_pair/

or

http://en.cppreference.com/w/cpp/utility/pair/make_pair

I think that will help. Those sites are good resources for C++, though the latter seems to be the preferred reference these days.