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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-06-08 18:52:04 -07:00 • committed by Arie Gurfinkel
parent 5fc0f56281
commit e6468726f5
3 changed files with 52 additions and 9 deletions
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5
src/ast/ast_util.cpp
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@ -195,6 +195,11 @@ expr * mk_not(ast_manager & m, expr * arg) {
return m.mk_not(arg);
}
expr_ref mk_not(expr_ref& e) {
return expr_ref(mk_not(e.m(), e), e.m());
}
expr_ref push_not(const expr_ref& e) {
ast_manager& m = e.get_manager();
if (!is_app(e)) {

2
src/ast/ast_util.h
View file

@ -127,6 +127,8 @@ inline expr_ref mk_or(expr_ref_vector const& args) { return expr_ref(mk_or(args.
*/
expr * mk_not(ast_manager & m, expr * arg);
expr_ref mk_not(expr_ref& e);
/**
Negate and push over conjunction or disjunction.
*/