A Discrete-Event Network Simulator
API
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double.cc
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1/*
2 * Copyright (c) 2008 INRIA
3 *
4 * SPDX-License-Identifier: GPL-2.0-only
5 *
6 * Authors: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
7 */
8#include "double.h"
9
10#include "log.h"
11#include "object.h"
12
13#include <sstream>
14
15/**
16 * \file
17 * \ingroup attribute_Double
18 * ns3::DoubleValue attribute value implementation.
19 */
20
21namespace ns3
22{
23
25
27
28/** Namespace for implementation details. */
29namespace internal
30{
31
32/**
33 * \ingroup attribute_Double
34 * Make a Double attribute checker with embedded numeric type name.
35 *
36 * \param [in] min The minimum allowed value.
37 * \param [in] max The maximum allowed value.
38 * \param [in] name The original type name ("float", "double").
39 * \returns The AttributeChecker.
40 */
42MakeDoubleChecker(double min, double max, std::string name)
43{
44 NS_LOG_FUNCTION(min << max << name);
45
46 struct Checker : public AttributeChecker
47 {
48 Checker(double minValue, double maxValue, std::string name)
49 : m_minValue(minValue),
50 m_maxValue(maxValue),
51 m_name(name)
52 {
53 }
54
55 bool Check(const AttributeValue& value) const override
56 {
57 NS_LOG_FUNCTION(&value);
58 const auto v = dynamic_cast<const DoubleValue*>(&value);
59 if (v == nullptr)
60 {
61 return false;
62 }
63 return v->Get() >= m_minValue && v->Get() <= m_maxValue;
64 }
65
66 std::string GetValueTypeName() const override
67 {
69 return "ns3::DoubleValue";
70 }
71
72 bool HasUnderlyingTypeInformation() const override
73 {
75 return true;
76 }
77
78 std::string GetUnderlyingTypeInformation() const override
79 {
81 std::ostringstream oss;
82 oss << m_name << " " << m_minValue << ":" << m_maxValue;
83 return oss.str();
84 }
85
86 Ptr<AttributeValue> Create() const override
87 {
90 }
91
92 bool Copy(const AttributeValue& source, AttributeValue& destination) const override
93 {
94 NS_LOG_FUNCTION(&source << &destination);
95 const auto src = dynamic_cast<const DoubleValue*>(&source);
96 auto dst = dynamic_cast<DoubleValue*>(&destination);
97 if (src == nullptr || dst == nullptr)
98 {
99 return false;
100 }
101 *dst = *src;
102 return true;
103 }
104
105 double m_minValue;
106 double m_maxValue;
107 std::string m_name;
108 }* checker = new Checker(min, max, name);
109
110 return Ptr<const AttributeChecker>(checker, false);
111}
112
113} // namespace internal
114
115} // namespace ns3
Represent the type of an attribute.
Definition attribute.h:157
Hold a value for an Attribute.
Definition attribute.h:59
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Definition double.h:31
double Get() const
Definition double.cc:26
Smart pointer class similar to boost::intrusive_ptr.
ns3::DoubleValue attribute value declarations and template implementations.
Ptr< const AttributeChecker > MakeDoubleChecker()
Definition double.h:82
#define ATTRIBUTE_VALUE_IMPLEMENT_WITH_NAME(type, name)
Define the class methods belonging to the attribute value class nameValue of the underlying class typ...
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition log.h:191
#define NS_LOG_FUNCTION_NOARGS()
Output the name of the function.
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
Ptr< T > Create(Ts &&... args)
Create class instances by constructors with varying numbers of arguments and return them by Ptr.
Definition ptr.h:436
Debug message logging.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Ptr< T > Copy(Ptr< T > object)
Return a deep copy of a Ptr.
Definition ptr.h:604
ns3::Object class declaration, which is the root of the Object hierarchy and Aggregation.