Error when trying to push back a tuple into a const vector

Question

I have the following vector:

const vector<tuple<int,int>> &v;

I want to add tuples to this vector, so I did the following:

tuple<int,int> newOne = make_tuple(0,2);
v.push_back(newOne);

The error message I got was:

"No matching member function for call to 'push_back'"

I cannot see what I did wrong. Can anyone tell me why this is wrong and how to fix it?

Do you know what `const` means? There is no matching `push_back` because it's a non-mutable object. — Blastfurnace, Mar 30 '14 at 17:04

score 2 · Accepted Answer · answered Mar 30 '14 at 17:07

2

When you take a parameter as a const reference it's a reference to a non-mutable object. If you can change the parameter to just a reference you should be able to add more elements.

answered Mar 30 '14 at 17:07

Blastfurnace

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Error when trying to push back a tuple into a const vector

1 Answers1