1 /* Variable_Floating_Point_Expression class implementation: inline functions.
2 Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
3 Copyright (C) 2010-2016 BUGSENG srl (http://bugseng.com)
4
5 This file is part of the Parma Polyhedra Library (PPL).
6
7 The PPL is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11
12 The PPL is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software Foundation,
19 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
20
21 For the most up-to-date information see the Parma Polyhedra Library
22 site: http://bugseng.com/products/ppl/ . */
23
24 #ifndef PPL_Variable_Floating_Point_Expression_inlines_hh
25 #define PPL_Variable_Floating_Point_Expression_inlines_hh 1
26
27 #include "globals_defs.hh"
28
29 namespace Parma_Polyhedra_Library {
30
31 template <typename FP_Interval_Type, typename FP_Format>
32 inline
33 Variable_Floating_Point_Expression<FP_Interval_Type, FP_Format>::
Variable_Floating_Point_Expression(const dimension_type v_index)34 Variable_Floating_Point_Expression(const dimension_type v_index)
35 : variable_index(v_index) {}
36
37 template <typename FP_Interval_Type, typename FP_Format>
38 inline
39 Variable_Floating_Point_Expression<FP_Interval_Type, FP_Format>::
~Variable_Floating_Point_Expression()40 ~Variable_Floating_Point_Expression() {}
41
42 template <typename FP_Interval_Type, typename FP_Format>
43 inline void
44 Variable_Floating_Point_Expression<FP_Interval_Type, FP_Format>
m_swap(Variable_Floating_Point_Expression & y)45 ::m_swap(Variable_Floating_Point_Expression& y) {
46 using std::swap;
47 swap(variable_index, y.variable_index);
48 }
49
50 template <typename FP_Interval_Type, typename FP_Format>
51 inline bool
52 Variable_Floating_Point_Expression<FP_Interval_Type, FP_Format>
linearize(const FP_Interval_Abstract_Store &,const FP_Linear_Form_Abstract_Store & lf_store,FP_Linear_Form & result) const53 ::linearize(const FP_Interval_Abstract_Store&,
54 const FP_Linear_Form_Abstract_Store& lf_store,
55 FP_Linear_Form& result) const {
56 typename FP_Linear_Form_Abstract_Store::const_iterator
57 variable_value = lf_store.find(variable_index);
58
59 if (variable_value == lf_store.end()) {
60 result = FP_Linear_Form(Variable(variable_index));
61 return true;
62 }
63
64 result = FP_Linear_Form(variable_value->second);
65 return !this->overflows(result);
66 }
67
68 template <typename FP_Interval_Type, typename FP_Format>
69 inline void
70 Variable_Floating_Point_Expression<FP_Interval_Type, FP_Format>
linear_form_assign(const FP_Linear_Form & lf,FP_Linear_Form_Abstract_Store & lf_store) const71 ::linear_form_assign(const FP_Linear_Form& lf,
72 FP_Linear_Form_Abstract_Store& lf_store) const {
73 for (typename FP_Linear_Form_Abstract_Store::iterator
74 i = lf_store.begin(); i != lf_store.end(); ) {
75 if ((i->second).coefficient(Variable(variable_index)) != 0) {
76 i = lf_store.erase(i);
77 }
78 else {
79 ++i;
80 }
81 }
82 lf_store[variable_index] = lf;
83 return;
84 }
85
86 /*! \relates Variable_Floating_Point_Expression */
87 template <typename FP_Interval_Type, typename FP_Format>
88 inline void
swap(Variable_Floating_Point_Expression<FP_Interval_Type,FP_Format> & x,Variable_Floating_Point_Expression<FP_Interval_Type,FP_Format> & y)89 swap(Variable_Floating_Point_Expression<FP_Interval_Type, FP_Format>& x,
90 Variable_Floating_Point_Expression<FP_Interval_Type, FP_Format>& y) {
91 x.m_swap(y);
92 }
93
94 } // namespace Parma_Polyhedra_Library
95
96 #endif // !defined(PPL_Variable_Floating_Point_Expression_inlines_hh)
97