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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
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Leonardo de Moura 2012-10-21 22:16:58 -07:00
parent 142bf71b35
commit 9359ab7ce5
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src/test/im_float_config.h Normal file
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/*++
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:
--*/
#ifndef _IM_FLOAT_CONFIG_H_
#define _IM_FLOAT_CONFIG_H_
#include"f2n.h"
#include"mpf.h"
#include"hwf.h"
template<typename f_manager>
class im_float_config {
f2n<f_manager> m_manager;
public:
typedef f2n<f_manager> 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<numeral_manager&>(m_manager); }
};
template<typename fmanager>
inline void del_f_interval(im_float_config<fmanager> & cfg, typename im_float_config<fmanager>::interval & a) {
cfg.m().del(a.m_lower);
cfg.m().del(a.m_upper);
}
#endif