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Avoid Copy when adding a Tuple to a VectorMap [message #57183]

Sun, 06 June 2021 03:39

Xemuth
Messages: 387
Registered: August 2018
Location: France

Senior Member

Hello,

I'm working with a VectorMap<int, Tuple<int, A>>
class A don't provid a copy constructor, only a Move constructor.
I would like to add a new Tuple to my vector map by moving a fresh class A.
But I don't succeed... Can someone help me ? (I would like to avoid creation of a class to replace tuple in this specific case)

#include <Core/Core.h>

using namespace Upp;

class A{
	public:
		A(int e) : d_e(e){}
		A(A&& a){d_e = a.d_e;}
		int d_e;
};

CONSOLE_APP_MAIN
{
	VectorMap<int, Tuple<int, A>> myVector;
	myVector(1, pick(Tuple<int,A>(1, 5)));
	Cout() << myVector.Get(1).b.d_e << EOL;
	//Error : call to implicitly deleted copy constructor of 'A'
}

Also, why there is no Create(Args...) function in VectorMap ? (like the one in ArrayMap)

[Updated on: Sun, 06 June 2021 04:04]

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