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bounds on loop expressions

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This commit is contained in:
Nikolaj Bjorner 2020-06-11 00:04:41 -07:00
parent b0da5409c1
commit 5a2b6d9c92
3 changed files with 26 additions and 8 deletions
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9
src/ast/seq_decl_plugin.h
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@ -239,6 +239,7 @@ class seq_util {
bv_util& bv() const;
unsigned max_plus(unsigned x, unsigned y) const;
unsigned max_mul(unsigned x, unsigned y) const;
public:
ast_manager& get_manager() const { return m; }
@ -468,10 +469,10 @@ public:
MATCH_UNARY(is_of_pred);
MATCH_UNARY(is_reverse);
MATCH_BINARY(is_derivative);
bool is_loop(expr const* n, expr*& body, unsigned& lo, unsigned& hi);
bool is_loop(expr const* n, expr*& body, unsigned& lo);
bool is_loop(expr const* n, expr*& body, expr*& lo, expr*& hi);
bool is_loop(expr const* n, expr*& body, expr*& lo);
bool is_loop(expr const* n, expr*& body, unsigned& lo, unsigned& hi) const;
bool is_loop(expr const* n, expr*& body, unsigned& lo) const;
bool is_loop(expr const* n, expr*& body, expr*& lo, expr*& hi) const;
bool is_loop(expr const* n, expr*& body, expr*& lo) const;
unsigned min_length(expr* r) const;
unsigned max_length(expr* r) const;
};