• Tobias Pankrath (22/22) Feb 18 2014 --
• Stanislav Blinov (5/6) Feb 18 2014 This looks like a bug to me, seeing as string predicate works.

"Tobias Pankrath" <tobias pankrath.net> writes:

--
struct Set(alias less = "a < b", T)
{
	import std.algorithm;
	import std.functional;
	alias lessFun = binaryFun!(less);

	int[] someContents;
	this(R)(R r)
	{
		sort!(lessFun)(someContents);
	}
}

unittest {
	auto as2 = Set!((x,y) => x < y , int)([2, 1, 3]);
}
-- http://dpaste.dzfl.pl/af6cb1a8d8ab

It works, if I provide a normal function or a string lambda as 
'less'. However the code above results in the following error:

/d923/f233.d(11): Error: constructor 
f233.__unittestL15_3.Set!((x, y) => x < y, 
int).Set.__ctor!(int[]).this cannot get frame pointer to sort

What's wrong?

"Stanislav Blinov" <stanislav.blinov gmail.com> writes:

On Tuesday, 18 February 2014 at 22:28:08 UTC, Tobias Pankrath 
wrote:

 What's wrong?

This looks like a bug to me, seeing as string predicate works. 
Although I don't get how you supply default template parameter 
for Set before explicit one :)