diff options
Diffstat (limited to 'src/theory/strings/solver_state.cpp')
-rw-r--r-- | src/theory/strings/solver_state.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/theory/strings/solver_state.cpp b/src/theory/strings/solver_state.cpp index 1766a4b24..622e919f7 100644 --- a/src/theory/strings/solver_state.cpp +++ b/src/theory/strings/solver_state.cpp @@ -264,6 +264,20 @@ Node SolverState::explainNonEmpty(Node s) return Node::null(); } +bool SolverState::isEqualEmptyWord(Node s, Node& emps) +{ + Node sr = getRepresentative(s); + if (sr.isConst()) + { + if (Word::getLength(sr) == 0) + { + emps = sr; + return true; + } + } + return false; +} + void SolverState::setConflict() { d_conflict = true; } bool SolverState::isInConflict() const { return d_conflict; } |