z3-z3-4.12.6.src.test.im_float_config.h Maven / Gradle / Ivy
/*++
Copyright (c) 2012 Microsoft Corporation
Module Name:
im_float_config.h
Abstract:
Auxiliary class for testing intervals with software floats end points.
Author:
Leonardo de Moura (leonardo) 2012-08-21.
Revision History:
--*/
#pragma once
#include "util/f2n.h"
#include "util/mpf.h"
#include "util/hwf.h"
template
class im_float_config {
f2n m_manager;
public:
typedef f2n numeral_manager;
typedef typename f_manager::numeral numeral;
im_float_config(f_manager & m, unsigned ebits = 11, unsigned sbits = 53):m_manager(m, ebits, sbits) {}
struct interval {
numeral m_lower;
numeral m_upper;
};
void round_to_minus_inf() { m_manager.round_to_minus_inf(); }
void round_to_plus_inf() { m_manager.round_to_plus_inf(); }
void set_rounding(bool up) { m_manager.set_rounding(up); }
// Getters
numeral const & lower(interval const & a) const { return a.m_lower; }
numeral const & upper(interval const & a) const { return a.m_upper; }
numeral & lower(interval & a) { return a.m_lower; }
numeral & upper(interval & a) { return a.m_upper; }
bool lower_is_inf(interval const & a) const { return m_manager.m().is_ninf(a.m_lower); }
bool upper_is_inf(interval const & a) const { return m_manager.m().is_pinf(a.m_upper); }
bool lower_is_open(interval const & a) const { return lower_is_inf(a); }
bool upper_is_open(interval const & a) const { return upper_is_inf(a); }
// Setters
void set_lower(interval & a, numeral const & n) { m_manager.set(a.m_lower, n); }
void set_upper(interval & a, numeral const & n) { m_manager.set(a.m_upper, n); }
void set_lower_is_open(interval & a, bool v) {}
void set_upper_is_open(interval & a, bool v) {}
void set_lower_is_inf(interval & a, bool v) { if (v) m_manager.m().mk_ninf(m_manager.ebits(), m_manager.sbits(), a.m_lower); }
void set_upper_is_inf(interval & a, bool v) { if (v) m_manager.m().mk_pinf(m_manager.ebits(), m_manager.sbits(), a.m_upper); }
// Reference to numeral manager
numeral_manager & m() const { return const_cast(m_manager); }
};