Potential error

[kazachkovaanna]

libcds/cds/intrusive/skip_list_nogc.h

Lines 356 to 369 in 44c052b

	/// Max node height. The actual node height should be in range <tt>[0 .. c_nMaxHeight)</tt>
	/**
	The max height is specified by \ref skip_list::random_level_generator "random level generator" constant \p m_nUpperBound
	but it should be no more than 32 (\p skip_list::c_nHeightLimit).
	*/
	static unsigned int const c_nMaxHeight = std::conditional<
	(random_level_generator::c_nUpperBound <= skip_list::c_nHeightLimit),
	std::integral_constant< unsigned int, random_level_generator::c_nUpperBound >,
	std::integral_constant< unsigned int, skip_list::c_nHeightLimit >
	>::type::value;
	//@cond
	static unsigned int const c_nMinHeight = 3;
	//@endcond

m_nMinHeight must not be less than m_nMaxHeight. This could be possible with custom random generator [0..n], n < 3.

Possibly leading to segmentation fault.

[kazachkovaanna]

@eugenyk please be aware that we raised this issue