Making a Stack of int Arrays

Question

I'm trying to make a stack of integer arrays, like so:

stack<int[2]> stk;

int arr[2] = {1,2};
stk.push(arr);

however, Visual C++ gives me the error

error C2075: 'Target of operator new()' : array initialization needs curly braces

and MinGW gives me the error

error: parenthesized initializer in array new

The error seems to be coming from stk.push(arr). What does the error mean, and how would I properly make a stack of integer arrays?

You can't use raw arrays in containers. For one, they're not copyable/moveable. — Qaz
– Qaz, Commented Feb 27, 2014 at 19:06

Lasse Espeholt · Accepted Answer · 2014-02-27 19:08:22Z

3

With C++11 arrays you can do this:

#include <stack>
#include <array>

stack<array<int, 2>> arrs;
arrs.push({1, 2});

As mentioned in a comment to the question, it is also possible to replace array<int, 2> with vector<int>. However, array<int, 2> achieves what you where describing with a fixed size container (and lower memory usage.)

answered Feb 27, 2014 at 19:08

Lasse Espeholt

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