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add nullable, get-head-tail with Caleb

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-18 19:10:00 -07:00
parent c40c4313a4
commit f8d328b1fb
3 changed files with 78 additions and 0 deletions
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2
src/ast/ast_util.h
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@ -102,6 +102,7 @@ expr * get_clause_literal(ast_manager & m, expr * cls, unsigned idx);
*/
expr * mk_and(ast_manager & m, unsigned num_args, expr * const * args);
app * mk_and(ast_manager & m, unsigned num_args, app * const * args);
inline expr * mk_and(ast_manager & m, expr* a, expr* b) { expr* args[2] = { a, b }; return mk_and(m, 2, args); }
inline app_ref mk_and(app_ref_vector const& args) { return app_ref(mk_and(args.get_manager(), args.size(), args.c_ptr()), args.get_manager()); }
inline expr_ref mk_and(expr_ref_vector const& args) { return expr_ref(mk_and(args.get_manager(), args.size(), args.c_ptr()), args.get_manager()); }
@ -123,6 +124,7 @@ app_ref operator+(expr_ref& a, expr_ref& b);
*/
expr * mk_or(ast_manager & m, unsigned num_args, expr * const * args);
app * mk_or(ast_manager & m, unsigned num_args, app * const * args);
inline expr * mk_or(ast_manager & m, expr* a, expr* b) { expr* args[2] = { a, b }; return mk_or(m, 2, args); }
inline app_ref mk_or(app_ref_vector const& args) { return app_ref(mk_or(args.get_manager(), args.size(), args.c_ptr()), args.get_manager()); }
inline expr_ref mk_or(expr_ref_vector const& args) { return expr_ref(mk_or(args.get_manager(), args.size(), args.c_ptr()), args.get_manager()); }