TCLAP::VALUE_ARG_HELPER::ValueExtractor< T > Class Template Reference

Detailed Description

template<class T>
class TCLAP::VALUE_ARG_HELPER::ValueExtractor< T >

This class is used to extract a value from an argument.

It is used because we need a special implementation to deal with std::string and making a specialiced function puts it in the T segment, thus generating link errors. Having a specialiced class makes the symbols weak. This is not pretty but I don't know how to make it work any other way.

Definition at line 52 of file ValueArg.h.

#include <mrpt/otherlibs/tclap/ValueArg.h>

Private Member Functions
	ValueExtractor (T &value)
	Constructor. More...
int	extractValue (const std::string &val)
	Method that will attempt to parse the input stream for a value of type T. More...

Private Attributes
T &	_value
	Reference to the value where the result of the extraction will be put. More...

Friends
class	ValueArg< T >

Constructor & Destructor Documentation

ValueExtractor()

template<class T >

TCLAP::VALUE_ARG_HELPER::ValueExtractor< T >::ValueExtractor ( T &  value )

inlineprivate

Constructor.

Parameters

value

- Where the value extracted will be put.

Definition at line 71 of file ValueArg.h.

Member Function Documentation

extractValue()

template<class T >

int TCLAP::VALUE_ARG_HELPER::ValueExtractor< T >::extractValue ( const std::string &  val )

inlineprivate

Method that will attempt to parse the input stream for a value of type T.

Parameters

val	- Where the value parsed will be put.

Definition at line 78 of file ValueArg.h.

References TCLAP::VALUE_ARG_HELPER::ValueExtractor< T >::_value, TCLAP::VALUE_ARG_HELPER::EXTRACT_FAILURE, and TCLAP::VALUE_ARG_HELPER::EXTRACT_TOO_MANY.

Referenced by TCLAP::ValueArg< T >::_extractValue().

Friends And Related Function Documentation

ValueArg< T >

template<class T >

friend class ValueArg< T >

friend

Definition at line 488 of file ValueArg.h.

Member Data Documentation

_value

template<class T >

T& TCLAP::VALUE_ARG_HELPER::ValueExtractor< T >::_value

private

Reference to the value where the result of the extraction will be put.

Definition at line 65 of file ValueArg.h.

Referenced by TCLAP::VALUE_ARG_HELPER::ValueExtractor< T >::extractValue(), and TCLAP::VALUE_ARG_HELPER::ValueExtractor< std::string >::extractValue().