tclap 1.2.2
ValuesConstraint.h
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1
2
3/******************************************************************************
4 *
5 * file: ValuesConstraint.h
6 *
7 * Copyright (c) 2005, Michael E. Smoot
8 * All rights reserved.
9 *
10 * See the file COPYING in the top directory of this distribution for
11 * more information.
12 *
13 * THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
14 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
16 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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19 * DEALINGS IN THE SOFTWARE.
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21 *****************************************************************************/
22
23#ifndef TCLAP_VALUESCONSTRAINT_H
24#define TCLAP_VALUESCONSTRAINT_H
25
26#ifdef HAVE_CONFIG_H
27#include <config.h>
28#endif
29
30#include <string>
31#include <vector>
32#include <tclap/Constraint.h>
33#include <tclap/sstream.h>
34
35namespace TCLAP {
36
41template<class T>
43{
44
45 public:
46
51 ValuesConstraint(std::vector<T>& allowed);
52
56 virtual ~ValuesConstraint() {}
57
61 virtual std::string description() const;
62
66 virtual std::string shortID() const;
67
73 virtual bool check(const T& value) const;
74
75 protected:
76
80 std::vector<T> _allowed;
81
85 std::string _typeDesc;
86
87};
88
89template<class T>
91: _allowed(allowed),
92 _typeDesc("")
93{
94 for ( unsigned int i = 0; i < _allowed.size(); i++ )
95 {
96
97#if defined(HAVE_SSTREAM)
99#elif defined(HAVE_STRSTREAM)
100 std::ostrstream os;
101#else
102#error "Need a stringstream (sstream or strstream) to compile!"
103#endif
104
105 os << _allowed[i];
106
107 std::string temp( os.str() );
108
109 if ( i > 0 )
110 _typeDesc += "|";
111 _typeDesc += temp;
112 }
113}
114
115template<class T>
116bool ValuesConstraint<T>::check( const T& val ) const
117{
118 if ( std::find(_allowed.begin(),_allowed.end(),val) == _allowed.end() )
119 return false;
120 else
121 return true;
122}
123
124template<class T>
126{
127 return _typeDesc;
128}
129
130template<class T>
132{
133 return _typeDesc;
134}
135
136
137} //namespace TCLAP
138#endif
139
The interface that defines the interaction between the Arg and Constraint.
Definition: Constraint.h:39
A Constraint that constrains the Arg to only those values specified in the constraint.
std::string _typeDesc
The string used to describe the allowed values of this constraint.
virtual bool check(const T &value) const
The method used to verify that the value parsed from the command line meets the constraint.
virtual std::string description() const
Returns a description of the Constraint.
ValuesConstraint(std::vector< T > &allowed)
Constructor.
virtual ~ValuesConstraint()
Virtual destructor.
std::vector< T > _allowed
The list of valid values.
virtual std::string shortID() const
Returns the short ID for the Constraint.
Definition: Arg.h:58
std::ostringstream ostringstream
Definition: sstream.h:38