Module: ppl/ppl Branch: master Commit: 331d2714c64dae5ed9fa556ea69ecc33c19b5f59 URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=331d2714c64da... Author: Enea Zaffanella <zaffanella@cs.unipr.it> Date: Fri May 15 08:00:30 2009 +0200 Added a note about the use of `assign' helper functions. --- src/MIP_Problem.cc | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/src/MIP_Problem.cc b/src/MIP_Problem.cc index 3e6bcab..9e531f0 100644 --- a/src/MIP_Problem.cc +++ b/src/MIP_Problem.cc @@ -857,6 +857,14 @@ PPL::MIP_Problem::process_pending_constraints() { namespace { +// NOTE: the following two `assign' helper functions are needed to +// handle the assignment of a Coefficient to a double in method +// MIP_Problem::steepest_edge_float_entering_index(). +// We cannot use assign_r(double, Coefficient, Rounding_Dir) as it would +// lead to a compilation error on those platforms (e.g., ARM) where +// controlled floating point rounding is not available (even if the +// rounding mode would be set to ROUND_IGNORE). + inline void assign(double& d, const mpz_class& c) { d = c.get_d();