fix hash map not being able to deal with 64-bit hashes

add documentation for cxListClone() - relates to #744

add documentation for cxMapClone() - resolves #743

add tests for cxMapClone() - relates to #743

add destruction of uninitialized entries on allocation failure to cxMapClone() - relates to #743

untested draft of cxMapClone() - relates to #743

(0) -1000 -300 -100 -30 -10 -6 +6 +10 +30 tip

mercurial