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Allow last_variable_index_ to be zero #3758

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Merged
merged 1 commit into from
Apr 19, 2023
Merged

Allow last_variable_index_ to be zero #3758

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6 changes: 4 additions & 2 deletions ortools/linear_solver/cplex_interface.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -863,7 +863,8 @@ void CplexInterface::ExtractNewConstraints() {

CPXDIM newCons = total - offset;
CPXDIM const cols = CPXXgetnumcols(mEnv, mLp);
DCHECK_EQ(last_variable_index_, cols);
CHECK(last_variable_index_ == 0 ||
last_variable_index_ == cols);
CPXDIM const chunk = 10; // max number of rows to add in one shot

// Update indices of new constraints _before_ actually extracting
Expand Down Expand Up @@ -950,7 +951,8 @@ void CplexInterface::ExtractObjective() {
// any non-zero duplicates.

CPXDIM const cols = CPXXgetnumcols(mEnv, mLp);
DCHECK_EQ(last_variable_index_, cols);
CHECK(last_variable_index_ == 0 ||
last_variable_index_ == cols);

unique_ptr<CPXDIM[]> ind(new CPXDIM[cols]);
unique_ptr<double[]> val(new double[cols]);
Expand Down