fix re-recognition of ranged rows at end of OsiGrb::addRows(rowlb,rowub)

- rowlb should not be -infinity for a ranged row

Author: svigerske

CHANGELOG

@@ -1,3 +1,6 @@
+05/03/2026
+  - fixed handling of ranged rows in OsiGrbSolverInterface::addRows() variant that passes row lhs and rhs
+
 21/03/2023
   - remove use of std::bind2nd to improve compatibility with C++17, see #177
 

src/OsiGrb/OsiGrbSolverInterface.cpp

@@ -2410,7 +2410,7 @@ void OsiGrbSolverInterface::addRows(const int numrows,
   if (haverangedrows) {
     int nr = getNumRows() - numrows;
     for (i = 0; i < numrows; ++i)
-      if (rowlb[i] > getInfinity() && rowub[i] < getInfinity() && rowub[i] - rowlb[i] > 0.0)
+      if (rowlb[i] > -getInfinity() && rowub[i] < getInfinity() && rowub[i] - rowlb[i] > 0.0)
         convertToRangedRow(nr + i, rowub[i], rowub[i] - rowlb[i]);
   } else if (nauxcols)
     resizeAuxColIndSpace();