/*++ 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 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); } }; template inline void del_f_interval(im_float_config & cfg, typename im_float_config::interval & a) { cfg.m().del(a.m_lower); cfg.m().del(a.m_upper); } #endif