#18732: Add tableau query functions glp_eval_tab_row, glp_eval_tab_col to GLPK
backend
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Reporter: mkoeppe | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.8
Component: numerical | Resolution:
Keywords: LP, glpk | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/yzh/add_tableau_query_functions_glp_eval_tab_row__glp_eval_tab_col_to_glpk_backend|
380dfb55b3966cd836fa1fbdc8325a9b3df8920e
Dependencies: | Stopgaps:
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Comment (by yzh):
Bonjour Nathann,
Thanks for the reference! It says that `sig_str` behaves the same as
`sig_on`. I just mimic the code in the `GLPKBackend.solve` and
`GLPKBackend.row` methods.
Does one need to deallocate the memory if an Error is raised between
`sig_on` and `sig_off`?
How to check that the pointers are not 'null'?
Yuan
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Ticket URL: <http://trac.sagemath.org/ticket/18732#comment:5>
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