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Re: VectorMap.Get [message #45232 is a reply to message #45231]

Tue, 13 October 2015 16:38

Klugier
Messages: 1076
Registered: September 2012
Location: Poland, Kraków

Senior Contributor

Hello Deep,

Try to clone your vector. I think in your case there is move operation for some reason. Maybe someone that knows better that mechanism can describe it for you. On the other hand I have got compilation error of your example in the latest upp. Code that should work:

#include <Core/Core.h>

using namespace Upp;

CONSOLE_APP_MAIN
{
	Vector<int> v1;
	VectorMap<String, Vector<int>> Vm;
	
	v1.Clear();
	v1.Add(0);
	v1.Add(3);
	Vm.Add("key1", v1); // <- Vector was copied

	v1.Clear();
	v1.Add(10);
	v1.Add(31);
	v1.Add(41);
	Vm.Add("key2", v1); // <- Vector was copied
	
	Vector<int> v2;
	v2 = clone(Vm.Get("key1")); // <- Without clone, probably move operation
	DUMP(v2);

	v2.Clear();
	v2 = clone(Vm.Get("key2"));
	DUMP(v2);
	
	v2.Clear();
	v2 = clone(Vm.Get("key1"));
	DUMP(v2);
}

Here is my log values:

v2 = [0, 3]
v2 = [10, 31, 41]
v2 = [0, 3]

------------------------------------------------------------ --
P.S.
Maybe you should put space after comma. In my opinion declaration like:

VectorMap<String, Vector<int>>

is more readable that

VectorMap<String,Vector<int>>

.

Sincerely,
Klugier

U++ - one framework to rule them all.

[Updated on: Tue, 13 October 2015 16:47]

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