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change data-structures to concanetation decomposition normal form

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-01-07 16:03:37 -08:00
parent 0c2334417c
commit ad778f87c7
6 changed files with 235 additions and 401 deletions
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1
src/ast/seq_decl_plugin.h
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@ -223,6 +223,7 @@ public:
app* mk_concat(expr* a, expr* b) { expr* es[2] = { a, b }; return m.mk_app(m_fid, OP_SEQ_CONCAT, 2, es); }
app* mk_concat(expr* a, expr* b, expr* c) { return mk_concat(a, mk_concat(b, c)); }
expr* mk_concat(unsigned n, expr* const* es) { if (n == 1) return es[0]; SASSERT(n > 1); return m.mk_app(m_fid, OP_SEQ_CONCAT, n, es); }
expr* mk_concat(expr_ref_vector const& es) { return mk_concat(es.size(), es.c_ptr()); }
app* mk_length(expr* a) { return m.mk_app(m_fid, OP_SEQ_LENGTH, 1, &a); }
app* mk_substr(expr* a, expr* b, expr* c) { expr* es[3] = { a, b, c }; return m.mk_app(m_fid, OP_SEQ_EXTRACT, 3, es); }
app* mk_contains(expr* a, expr* b) { expr* es[2] = { a, b }; return m.mk_app(m_fid, OP_SEQ_CONTAINS, 2, es); }