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100 Commits

Author SHA1 Message Date
Bernd Gärtner 9f5e838e6f - added a farkas-Lemma proof of infeasibility 
- added test with random small QP's
- fixed some bugs discovered by this:
   - output routine for programs is now printing symmetric D
   - internal comparison routine is now ignoring bound value if it
     was specified as infinite
   - fixed sign error in subrotuine of ratio_test
   - removed constant term from consideration in phase I
 2007-04-02 10:01:50 +00:00
Andreas Fabri c7e831b9ac Removed unused arguments 2007-03-27 07:49:33 +00:00
Bernd Gärtner 290d0e7e1f - fixed all occurrences of qp_A[i][j], qp_D[i][j] (qp_A[i], qp_D[i] are in 
general only convertible to the appropriate iterator types, and so the
  above will not work. The fix is to use (*(qp_A + i))[j]
 2007-03-23 10:57:07 +00:00
Bernd Gärtner 51b3b30f78 - copying models now have default/copy-constructors and assignment ops 
- test (and fixed) access to upper-diagonal entries in D
- MPS read/write disagreement now only triggers warning (small differences
  may be ok if floating point numbers are used)
 2007-03-23 10:20:03 +00:00
Bernd Gärtner 8a7a6a899e - internal qp_D now represents 2*D 2007-03-22 13:45:07 +00:00
Bernd Gärtner a82ea6875e Is_in_standard_form -> Is_nonnegative (like in interface) 2007-03-22 10:10:57 +00:00
Bernd Gärtner 00657e993b - is_valid made private and integrated into QP_solver constructor (it may use 
QP data that are no longer available after the constructor call)
- fixed copying models to only copy entries of D on/below the diagonal
- fixed are_equal_qp function to only access entries of D on/below the diagonal
 2007-03-22 09:41:04 +00:00
Bernd Gärtner 5d9a94c31a - uninitialized variable fix 2007-03-20 10:38:39 +00:00
Bernd Gärtner 48b08c927a - added new models that copy the data and integrated them into testsuite 2007-03-19 17:02:50 +00:00
Bernd Gärtner 3992a4840c - integrated MPS print function into test suite 
- cleaned up QP_functions by putting internal stuff into nested namespace
 2007-03-19 14:46:14 +00:00
Bernd Gärtner e527fa4c0a - U_iterator::value_type -> iterator_traits<U_iterator>:value_type 
- various warnings fixed
 2007-03-17 23:18:53 +00:00
Michael Hemmer 854ea80b4b rm use of CGALi::Is_field etc 
replaced by use of Algebraic_category tag
 2007-03-12 17:34:47 +00:00
Bernd Gärtner 1475ebf022 functor moved from dependent classes to QP_solver 2007-03-05 14:44:06 +00:00
Bernd Gärtner 6b5aaed1a0 - fixed "changes meaning" error 2007-03-01 19:26:54 +00:00
Bernd Gärtner d03d1ccaf4 - avoid division by zero gcd in Quotient_normalizer 2007-03-01 16:47:18 +00:00
Bernd Gärtner f3d98caccb - some further warning fixes 2007-02-23 09:08:12 +00:00
Bernd Gärtner 513678a4a6 - some more warning fixes 2007-02-22 10:15:03 +00:00
Bernd Gärtner b59d73c78f - fixed warnings (mainly unused variables in functions overloaded by tags) 2007-02-22 10:07:00 +00:00
Bernd Gärtner 5a76699d6d - removed C-files under include/CGAL 2007-02-16 15:40:25 +00:00
Bernd Gärtner 6039e402f1 - some warning fixes, plus minimal testfile that breaks debugged platform 2007-02-16 11:56:15 +00:00
Bernd Gärtner 010463a038 - went from a[i] to *(a+i) to please debugged g++, but don't understand 
the actual problem
 2007-02-15 14:21:44 +00:00
Bernd Gärtner 1ecc6a24f2 - redundant friend removed; iterators now returned as "const Iterator" in the 
hope of pleasing Menelaos' debugged g++ platform
 2007-02-13 12:18:05 +00:00
Bernd Gärtner 7bbcbc2f31 fixes of small errors detected on various platforms 2007-02-12 08:41:50 +00:00
Bernd Gärtner 0a4fa9fa15 examples cleaned up and fixed 2007-02-08 17:57:45 +00:00
Bernd Gärtner 29bb3bfa24 QP_solver testsuite improved and adapted to Algebraic_foundations 2007-02-08 15:45:01 +00:00
Sylvain Pion fb8595b94e Cleanup : remove ancient CGAL_PROTECT_* macros. 
It's the compiler's job to optimize preprocessing time.
 2007-01-24 17:16:05 +00:00
Laurent Saboret 9d0d302a87 Fixed svn properties of whole trunk 2006-12-18 09:37:55 +00:00
Michael Hemmer 0257a65d7b replaced: 
CGAL::exact_division(..) -> CGAL::integral_division
 2006-11-17 08:56:52 +00:00
Michael Hemmer 085f9c5144 CGAL::exact_division -> CGAL::integral_division 2006-11-06 15:51:58 +00:00
Bernd Gärtner a949180978 introduced cast of qp_A[j] to A_column for cases where we get a proxy only 2006-11-01 11:57:09 +00:00
Bernd Gärtner aeb1213f4c - Free models added; 
- figures/program for closest point in intersection of halfspaces
 2006-10-27 14:07:45 +00:00
Bernd Gärtner 43d3e1b6bc important variables doc 2006-10-21 17:02:31 +00:00
Bernd Gärtner 503940b105 point in convex hull example added (examples+doc) 2006-10-21 15:25:32 +00:00
Bernd Gärtner d1c7c0d1f0 next user manual round 2006-10-19 20:07:04 +00:00
Bernd Gärtner b1994690c6 first part of usr manual; renamed functionality (QP->Quadratic_program...) 2006-10-19 17:47:58 +00:00
Bernd Gärtner 100bed9764 - minor documentation fix (c -> c_aux in is_sol_opt_for_aux_problem()) 2006-09-28 18:32:44 +00:00
Bernd Gärtner af94b11eb7 - ET/Quotient<ET> access to variable values/certicficates 2006-09-28 17:32:25 +00:00
Bernd Gärtner 561f2650f3 - introduced iterator for optimality certificate; the validity check 
is using it now
 2006-09-28 16:50:59 +00:00
Bernd Gärtner 6a05b09d69 - Unbounded_direction_iterator refactored; it now uses the 
Transform_diff_const_iterator
 2006-09-28 16:04:06 +00:00
Bernd Gärtner 68fc833cb5 - Is-symmetric tag removed; now all input is assumed to be symmetric. 
Reason: the tag is unecessary, and allowing non-symmetric input only
  allows the user to enter redundant information
 2006-09-28 14:29:33 +00:00
Bernd Gärtner a52c3881b6 - tag "Has_equalities_only_and_full_rank" removed; this is now handled 
dynamically in the code. Reason: this tag is difficult to explain to
  the user, does not have any effect on the interface, and is not very
  costly to dispatch dynamically
 2006-09-28 10:30:04 +00:00
Bernd Gärtner 631f1560f2 - vector O (original variable indices) removed and replaced by 
proper iterator
 2006-09-26 11:43:15 +00:00
Bernd Gärtner cb9694e886 - old internal type Double removed (Gmpzf takes over) 2006-09-26 10:07:07 +00:00
Bernd Gärtner 191f397d13 - basic interface for QP_solution enhanced; interface types and names 
are now consistently only introduced in QP_solution, while the virtual
  functions in QP_solver_base are implementation-centered
 2006-09-26 09:54:39 +00:00
Bernd Gärtner 49cac0da8b - removed special handling of Gmpq from QP_models, since the read-from-float 
capability is now available in Gmpq.h
 2006-09-19 14:30:56 +00:00
Bernd Gärtner 6a21496393 - added sparse representation and handling of LP to MPS reader; make_zero_D is removed 2006-09-16 19:12:07 +00:00
Bernd Gärtner aff6bd05a5 - made first version of QP_solution 
- refactored QP_solver to have missing types / iterators from QP generated
- added normalization of variable values / solution
 2006-09-14 16:46:51 +00:00
Bernd Gärtner f9ff2cfb36 - added make_qp function (more will follow: make_lp, make_nonnegative_lp,...) 
- moved write_MPS out of QP_from_mps and made general
- introduced QP_solution as ref-counted wrapper for QP_solver pointers
 2006-09-13 21:10:11 +00:00
Bernd Gärtner 7464866235 - added QP models 
- refactored QP_solver to separate the QP, the ET and the Tags
- got rid of MPS.h, MPS.C (integrated into QP_models)
- added QP_functions.h to test full rank of QP
- added QP_solver diagnostics for friends to access
- removed ET type from MPS reader (was only needed for rank test, and now
  I'm using the new QP function for that -> faster and cleaner)
 2006-09-09 14:58:32 +00:00
Bernd Gärtner d0a6a430ce removed configurable row type, now CGAL::Comparison must be used 2006-09-05 12:32:25 +00:00