npstat::Column Class Reference

#include <Column.hh>

Public Member Functions
	Column (const unsigned long i)
	Column (const char *name)
	Column (const std::string &name)
template<typename T >
bool	isValid (const AbsNtuple< T > &ntuple) const
template<typename T >
unsigned long	operator() (const AbsNtuple< T > &ntuple) const

Detailed Description

This class serves just one purpose: it allows to address ntuple columns by either name or number in the same function call. Do not create stand-alone objects of this class in your application code and do not include this header directly (it will be included automatically when you include AbsNtuple.hh). Objects of this class are not meant to be reused, and doing so can lead to subtle bugs.

Constructor & Destructor Documentation

Column() [1/3]

npstat::Column::Column ( const unsigned long  i )

inline

Constructor from unsigned integer

Column() [2/3]

npstat::Column::Column ( const char *  name )

inline

Constructor from c-string

Column() [3/3]

npstat::Column::Column ( const std::string &  name )

inline

Constructor from std::string

Member Function Documentation

isValid()

template<typename T >

bool npstat::Column::isValid

(

const AbsNtuple< T > &

ntuple

)

const

Can't call "isValid" after operator(): this will result in a run-time error

operator()()

template<typename T >

unsigned long npstat::Column::operator()

(

const AbsNtuple< T > &

ntuple

)

const

This will return the column number in the given ntuple or will throw an exception if the column specification is invalid

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The documentation for this class was generated from the following file:

• stat/Column.hh