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Avoid null pointer warnings in justifications.

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This commit is contained in:
Christoph M. Wintersteiger 2017-04-05 19:42:02 +01:00
parent c4b26cd691
commit 7d35fcb17e
1 changed files with 7 additions and 5 deletions
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12
src/smt/smt_justification.cpp
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@ -246,13 +246,15 @@ namespace smt {
simple_justification::simple_justification(region & r, unsigned num_lits, literal const * lits): simple_justification::simple_justification(region & r, unsigned num_lits, literal const * lits):
m_num_literals(num_lits) { m_num_literals(num_lits) {
m_literals = new (r) literal[num_lits]; if (num_lits != 0) {
memcpy(m_literals, lits, sizeof(literal) * num_lits); m_literals = new (r) literal[num_lits];
memcpy(m_literals, lits, sizeof(literal) * num_lits);
#ifdef Z3DEBUG #ifdef Z3DEBUG
for (unsigned i = 0; i < num_lits; i++) { for (unsigned i = 0; i < num_lits; i++) {
SASSERT(lits[i] != null_literal); SASSERT(lits[i] != null_literal);
} }
#endif #endif
}
} }
void simple_justification::get_antecedents(conflict_resolution & cr) { void simple_justification::get_antecedents(conflict_resolution & cr) {