18 lines
626 B
C++
18 lines
626 B
C++
/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include "kernel/io_state.h"
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#include "library/if_then_else_decls.h"
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namespace lean {
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expr mk_ite_fn();
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bool is_ite_fn(expr const & e);
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inline bool is_ite(expr const & e) { return is_app(e) && is_ite_fn(arg(e, 0)); }
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inline expr mk_ite(expr const & e1, expr const & e2, expr const & e3, expr const & e4) { return mk_app(mk_ite_fn(), e1, e2, e3, e4); }
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void import_ite(environment const & env, io_state const & ios);
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void open_ite(lua_State * L);
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}
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