tclap 1.2.5
Constraint.h
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1// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
2
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4/******************************************************************************
5 *
6 * file: Constraint.h
7 *
8 * Copyright (c) 2005, Michael E. Smoot
9 * Copyright (c) 2017, Google LLC
10 * All rights reserved.
11 *
12 * See the file COPYING in the top directory of this distribution for
13 * more information.
14 *
15 * THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
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24
25#ifndef TCLAP_CONSTRAINT_H
26#define TCLAP_CONSTRAINT_H
27
28#include <string>
29#include <vector>
30#include <list>
31#include <iostream>
32#include <iomanip>
33#include <algorithm>
34#include <stdexcept>
35
36namespace TCLAP {
37
41template<class T>
43{
44
45 public:
49 virtual std::string description() const =0;
50
54 virtual std::string shortID() const =0;
55
61 virtual bool check(const T& value) const =0;
62
68 virtual ~Constraint() { ; }
69
70 static std::string shortID(Constraint<T> *constraint) {
71 if (!constraint)
72 throw std::logic_error("Cannot create a ValueArg with a NULL constraint");
73 return constraint->shortID();
74 }
75};
76
77} //namespace TCLAP
78#endif
The interface that defines the interaction between the Arg and Constraint.
Definition: Constraint.h:43
virtual std::string shortID() const =0
Returns the short ID for the Constraint.
virtual bool check(const T &value) const =0
The method used to verify that the value parsed from the command line meets the constraint.
static std::string shortID(Constraint< T > *constraint)
Definition: Constraint.h:70
virtual std::string description() const =0
Returns a description of the Constraint.
virtual ~Constraint()
Destructor.
Definition: Constraint.h:68
Definition: Arg.h:48