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more rewrites

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-12-06 10:44:19 -08:00
parent 4fe0e07080
commit 40e9e4c7f8
4 changed files with 98 additions and 12 deletions
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9
src/ast/seq_decl_plugin.cpp
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@ -355,3 +355,12 @@ bool seq_decl_plugin::is_value(app* e) const {
app* seq_util::str::mk_string(symbol const& s) {
return u.seq.mk_string(s);
}
void seq_util::str::get_concat(expr* e, ptr_vector<expr>& es) const {
expr* e1, *e2;
while (is_concat(e, e1, e2)) {
get_concat(e1, es);
e = e2;
}
es.push_back(e);
}