select1st< PairType > Struct Template Reference

Functor to retrieve the key of a key-value pair in a map, used in STL iteration algorithms. More...

Inheritance diagram for select1st< PairType >:

List of all members.

Public Types

• typedef std::unary_function
  < PairType, typename
  PairType::first_type > BaseClassType
• typedef BaseClassType::result_type result_type
• typedef
  BaseClassType::argument_type argument_type
• typedef PairType value_type

Public Member Functions

• result_type operator() (const argument_type &thePair) const

  Retrieve the key of a key-value pair.
  

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Detailed Description

template<class PairType>
struct select1st< PairType >

Functor to retrieve the key of a key-value pair in a map, used in STL iteration algorithms.

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Member Typedef Documentation

template<class PairType >

typedef BaseClassType::argument_type select1st< PairType >::argument_type

template<class PairType >

typedef std::unary_function<PairType, typename PairType::first_type> select1st< PairType >::BaseClassType

template<class PairType >

typedef BaseClassType::result_type select1st< PairType >::result_type

template<class PairType >

typedef PairType select1st< PairType >::value_type

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Member Function Documentation

template<class PairType >

result_type select1st< PairType >::operator()

(

const argument_type &

thePair

)

const

Retrieve the key of a key-value pair.

Parameters:

thePair

key-value pair

Returns:

key

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

• STLHelper.hpp