[CoinUtils-tickets] [COIN-OR Common Utilities] #12: incorrect rounding in CoinLpIO

[COIN-OR Common Utilities]

#12: incorrect rounding in CoinLpIO
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 Reporter:  fmargot     |       Owner:  somebody
     Type:  defect      |      Status:  new     
 Priority:  major       |   Milestone:          
Component:  component1  |     Version:          
 Keywords:              |  
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 The following code in CoinLpIO::out_coeff()

   if(frac < lp_eps) {
     fprintf(fp, " %.0f", v);
   }
   else {
     if(frac > 1 - lp_eps) {
       fprintf(fp, " %.0f", v+1);
     }

 is incorrect for negative numbers close to integer values.
 This should be replaced by:

   if(frac < lp_eps) {
     fprintf(fp, " %.0f", floor(v));
   }
   else {
     if(frac > 1 - lp_eps) {
       fprintf(fp, " %.0f", floor(v+0.5));
     }

-- 
Ticket URL: <https://projects.coin-or.org/CoinUtils/ticket/12>
COIN-OR Common Utilities <http://projects.coin-or.org/CoinUtils>
Common data structures and linear algebra functions for COIN-OR projects