[Octave-bug-tracker] [bug #49559] Implementation of containers.Map

[John W. Eaton]

Follow-up Comment #16, bug #49559 (project octave):

Rik: typecast should also handle negative values since it is just a
reinterpretation of the bits of the input value.  My idea was that you could
exactly convert any value to 16 hex characters.  Using sprintf with a %g
format causes trouble for large 64-bit integer values.  See for example this
test:


key = intmax ("uint64");
m = containers.Map (key, pi);
assert (m.keys (), {key})


I checked in the following changeset.  I think the performance is still good,
at least it is with this test:


n = 2e3; tic; mapObj = containers.Map(num2cell(1:n),1:n); toc


http://hg.savannah.gnu.org/hgweb/octave/rev/95744d6d7d3b

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