32af0d4475
The new API routine glp_mincost_relax4, which is a driver to
relaxation method of Bertsekas and Tseng (RELAX-IV), was added
to the package. RELAX-IV is a code for solving minimum cost
flow problems. On large instances it is 100-1000 times faster
than the standard primal simplex method. Prof. Bertsekas, the
author of the original RELAX-IV Fortran code, kindly permitted
to include a C translation of his code in GLPK under GPLv3.
A bug (wrong dual feasibility test) was fixed in API routine
glp_warm_up. Thanks to David T. Price <dtprice@speakeasy.net>
for bug report.
Obsolete API routine lpx_check_kkt was replaced by new routine
glp_check_kkt.
IMPORTANT: All old API routines whose names begin with 'lpx_'
were removed from API level and NO MORE AVAILABLE.
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