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annotate enode hash as signed character to address issue #210

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-09-29 14:14:29 -07:00
parent 074ff58739
commit 77c423b9aa
4 changed files with 10 additions and 10 deletions
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2
src/smt/smt_enode.cpp
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@ -216,7 +216,7 @@ namespace smt {
// m_lbl_hash should be different from -1, if and only if,
// there is a pattern that contains the enode. So,
// I use a trail to restore the value of m_lbl_hash to -1.
ctx.push_trail(value_trail<context, char>(m_lbl_hash));
ctx.push_trail(value_trail<context, signed char>(m_lbl_hash));
unsigned h = hash_u(get_owner_id());
m_lbl_hash = h & (APPROX_SET_CAPACITY - 1);
// propagate modification to the root m_lbls set.