SortDesc< T > Struct Template Reference

Public Member Functions
	SortDesc (const bool nulls_last)
T	mapValue (const T &val)
bool	operator() (const T &a, const T &b)

Static Public Member Functions
static T	map_null_value (const bool nulls_last)

Public Attributes
const T	null_value_
const T	null_value_mapped_

Detailed Description

template<typename T>
struct SortDesc< T >

Definition at line 83 of file OtherTestTableFunctions.cpp.

Constructor & Destructor Documentation

template<typename T >

SortDesc< T >::SortDesc ( const bool  nulls_last )

inline

Definition at line 84 of file OtherTestTableFunctions.cpp.

      : null_value_(std::numeric_limits<T>::lowest())
      , null_value_mapped_(map_null_value(nulls_last)) {}

Member Function Documentation

template<typename T >

static T SortDesc< T >::map_null_value ( const bool  nulls_last )

inlinestatic

Definition at line 87 of file OtherTestTableFunctions.cpp.

                                                 {
    return nulls_last ? std::numeric_limits<T>::lowest() : std::numeric_limits<T>::max();
  }

template<typename T >

T SortDesc< T >::mapValue ( const T &  val )

inline

Definition at line 91 of file OtherTestTableFunctions.cpp.

                                  {
    return val == null_value_ ? null_value_mapped_ : val;
  }

template<typename T >

bool SortDesc< T >::operator() ( const T &  a, const T &  b  )

inline

Definition at line 95 of file OtherTestTableFunctions.cpp.

{ return mapValue(a) > mapValue(b); }

Member Data Documentation

template<typename T >

const T SortDesc< T >::null_value_

Definition at line 96 of file OtherTestTableFunctions.cpp.

template<typename T >

const T SortDesc< T >::null_value_mapped_

Definition at line 97 of file OtherTestTableFunctions.cpp.

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

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/TableFunctions/TestFunctions/OtherTestTableFunctions.cpp