id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13318	key_of_value now changes the type in the priority comparison for intrusive::treap_set	Jan Martin Mikkelsen <janm@…>	Ion Gaztañaga	"Setting the `key_of_value` option now changes the type used in the priority comparison, which makes it impossible to use `key_of_value` when the priority is entirely separate to the primary key.

The example below uses a comparison functor; a similar problem occurs with `priority_compare(T const&, T const&)` function.

This worked in 1.59, fails to compile in 1.65.1.

{{{
#include <boost/intrusive/treap_set.hpp>

using namespace boost::intrusive;

struct Test : public bs_set_base_hook<>
{
    Test(int k, int p) : m_key(k), m_priority(p) {}

    int m_key;
    int m_priority;
};

struct TestKey
{
    using type = int;
    int const& operator()(Test const& t) const { return t.m_key; }
};

struct PriorityCompare
{
    bool operator()(Test const& t1, Test const& t2) const {
	return t1.m_priority < t2.m_priority;
    }
};

using Container =
    treap_set<Test, key_of_value<TestKey>, priority<PriorityCompare>>;

int main()
{
    Test t1(1, 2);
    Container c;
    c.insert(t1);
}
}}}
"	Bugs	new	To Be Determined	intrusive	Boost 1.65.0	Regression