GNU Octave - Bugs: bug #40812, glpk should avoid integer overflow...

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bug #40812: glpk should avoid integer overflow when Octave uses 64-bit indexing

Submitter:	John W. Eaton <jwe>
Submitted:	Wed 04 Dec 2013 07:56:30 PM UTC


Category:	Octave Function	Severity:	3 - Normal
Priority:	5 - Normal	Item Group:	Other
Status:	None	Assigned to:	None
Originator Name:	jwe	Open/Closed: *	Open
Release: *	dev	Operating System: *	Any
Fixed Release:	None	Planned Release:	None

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Wed 04 Dec 2013 07:56:30 PM UTC, original submission:

GLPK uses integer variables for problem dimensions, but Octave is storing octave_idx_type values in those variables. This can cause trouble if Octave is compiled with 64-bit indexing and someone passes large arrays to glpk. The changes required should be similar to what was done in this changeset

http://hg.savannah.gnu.org/hgweb/octave/rev/ac74b0c4c564

for similar problems with Qhull.

It would probably be best to generalize the "octave_qhull_dims_ok" function and avoid duplicating it in multiple files.

John W. Eaton <jwe>

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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GNU Octave - Bugs: bug #40812, glpk should avoid integer overflow...

bug #40812: glpk should avoid integer overflow when Octave uses 64-bit indexing

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