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Home » Community » U++ community news and announcements » It is now possible to pass containers to callback[n] with pick/clone
It is now possible to pass containers to callback[n] with pick/clone [message #45574] Mon, 07 December 2015 10:09
mirek is currently offline  mirek
Messages: 13975
Registered: November 2005
Ultimate Member
There was an ugly problem with passing containers (or, generally, pick/clone types) as callback parameters. It is now nicely resolved as demonstrated by new reference example:

#include <Core/Core.h>

using namespace Upp;

void Function(const Vector<String>& h)
{
	LOG("Callback invoked with " << h);
}

CONSOLE_APP_MAIN
{
	Vector<String> v;
	v << "Just" << "a" << "test";
	
	Callback cb1 = callback1(Function, clone(v));
	LOG("Source picked: " << v.IsPicked());
	LOG("Source: " << v);

	v << "2";
	Callback cb2 = callback1(Function, pick(v));
	LOG("Source picked: " << v.IsPicked());

	cb1();
	cb2();
}
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