/*++
Copyright (c) 2011 Microsoft Corporation

Module Name:

    model_core.cpp

Abstract:

    Base class for models.

Author:

    Leonardo de Moura (leonardo) 2011-04-30.

Revision History:

--*/
#include"model_core.h"

bool model_core::eval(func_decl* f, expr_ref & r) const {
    if (f->get_arity() == 0) {
        r = get_const_interp(f);
        return r != 0;
    }
    else {
        func_interp * fi = get_func_interp(f);
        if (fi != 0) {
            r = fi->get_interp();
            return r != 0;
        }
        return false;
    }
}