lemon/network_simplex.h
changeset 1071 879fcb781086
parent 1053 1c978b5bcc65
parent 1070 ee9bac10f58e
child 1080 c5cd8960df74
equal deleted inserted replaced
41:274d48849380 43:8c81da995efd
  1065         _sum_supply += _supply[i];
  1065         _sum_supply += _supply[i];
  1066       }
  1066       }
  1067       if ( !((_stype == GEQ && _sum_supply <= 0) ||
  1067       if ( !((_stype == GEQ && _sum_supply <= 0) ||
  1068              (_stype == LEQ && _sum_supply >= 0)) ) return false;
  1068              (_stype == LEQ && _sum_supply >= 0)) ) return false;
  1069 
  1069 
       
  1070       // Check lower and upper bounds
       
  1071       LEMON_DEBUG(checkBoundMaps(),
       
  1072           "Upper bounds must be greater or equal to the lower bounds");
       
  1073 
  1070       // Remove non-zero lower bounds
  1074       // Remove non-zero lower bounds
  1071       if (_have_lower) {
  1075       if (_have_lower) {
  1072         for (int i = 0; i != _arc_num; ++i) {
  1076         for (int i = 0; i != _arc_num; ++i) {
  1073           Value c = _lower[i];
  1077           Value c = _lower[i];
  1074           if (c >= 0) {
  1078           if (c >= 0) {
  1228         _all_arc_num = f;
  1232         _all_arc_num = f;
  1229       }
  1233       }
  1230 
  1234 
  1231       return true;
  1235       return true;
  1232     }
  1236     }
       
  1237     
       
  1238     // Check if the upper bound is greater or equal to the lower bound
       
  1239     // on each arc.
       
  1240     bool checkBoundMaps() {
       
  1241       for (int j = 0; j != _arc_num; ++j) {
       
  1242         if (_upper[j] < _lower[j]) return false;
       
  1243       }
       
  1244       return true;
       
  1245     }
  1233 
  1246 
  1234     // Find the join node
  1247     // Find the join node
  1235     void findJoinNode() {
  1248     void findJoinNode() {
  1236       int u = _source[in_arc];
  1249       int u = _source[in_arc];
  1237       int v = _target[in_arc];
  1250       int v = _target[in_arc];