Major additions

New routines

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UDIMEN, UDIMSH, UDIMSE, CDIMEN, CDIMSH, CDIMSE, CDIMSJ to determine appropriate array dimensions in advance

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UVARTY, CVARTY to detect integer/zero-one variables

SIF

Extension to SIF format to allow users to specify explicit quadratic terms for the objective function; these extensions have been made by others to the MPS format to handle quadratic programs.

21/02/00:

Now a non-fatal return when the SIF file is missing or incomplete. Also, added OSL-like alias QSECTION for QUADRATIC card.

06/03/00:

Increased integer formats from I6 to I8. Increased filename format in slct.f from 39 to 256. Improved workspace partitions. Fixed bug introduced re: added OSL-like alias QSECTION on 21/02/00.

07/09/00:

Checks added to ensure that the range transormation is "useful".