TCLAP::VALUE_ARG_HELPER::ValueExtractor Class Reference

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Detailed Description

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.

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

List of all members.

Private Member Functions
	ValueExtractor (T &value)
	Constructor.
int	extractValue (const std::string &val)
	Method that will attempt to parse the input stream for a value of type T.
Private Attributes
T &	_value
	Reference to the value where the result of the extraction will be put.
Friends
class	ValueArg< T >

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Constructor & Destructor Documentation

TCLAP::VALUE_ARG_HELPER::ValueExtractor::ValueExtractor

(

T &

value

)

[inline, private]

Constructor.

Parameters:

value

- Where the value extracted will be put.

Definition at line 82 of file ValueArg.h.

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Member Function Documentation

int TCLAP::VALUE_ARG_HELPER::ValueExtractor::extractValue

(

const std::string &

val

)

[inline, private]

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 89 of file ValueArg.h.

References _value, TCLAP::VALUE_ARG_HELPER::EXTRACT_FAILURE, and TCLAP::VALUE_ARG_HELPER::EXTRACT_TOO_MANY.

Referenced by TCLAP::ValueArg::_extractValue().

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Friends And Related Function Documentation

friend class ValueArg< T > [friend]

Definition at line 68 of file ValueArg.h.

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Member Data Documentation

T& TCLAP::VALUE_ARG_HELPER::ValueExtractor::_value [private]

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

Definition at line 76 of file ValueArg.h.

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