bslstl::HashTable_HashWrapper< FUNCTOR > Class Template Reference

#include <bslstl_hashtable.h>

List of all members.

Public Member Functions
	HashTable_HashWrapper ()
	HashTable_HashWrapper (const FUNCTOR &fn)
void	swap (HashTable_HashWrapper &other)
template<class ARG_TYPE >
std::size_t	operator() (ARG_TYPE &arg) const
const FUNCTOR &	functor () const

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Detailed Description

template<class FUNCTOR>
class bslstl::HashTable_HashWrapper< FUNCTOR >

This class provides a wrapper around a functor satisfying the Hash requirements (bslstl_hash) such that the function call operator is always declared as const qualified.

TBD Provide an optimization for the case of an empty base functor, where we can safely const_cast want calling the base class operator.

Note that we would only one class, not two, with C++11 variadic templates and perfect forwarding, and we could also easily detect whether or not FUNCTOR provided a const-qualified operator().

See Component bslstl_hashtable

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Constructor & Destructor Documentation

template<class FUNCTOR>

bslstl::HashTable_HashWrapper< FUNCTOR >::HashTable_HashWrapper

(

)

Create a HashTable_HashWrapper object wrapping a FUNCTOR that has its default value.

template<class FUNCTOR>

bslstl::HashTable_HashWrapper< FUNCTOR >::HashTable_HashWrapper

(

const FUNCTOR &

fn

)

[explicit]

Create a HashTable_HashWrapper object wrapping a FUNCTOR that is a copy of the specified fn.

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Member Function Documentation

template<class FUNCTOR>

void bslstl::HashTable_HashWrapper< FUNCTOR >::swap

(

HashTable_HashWrapper< FUNCTOR > &

other

)

Exchange the value of this object with the specified other object.

template<class FUNCTOR>

template<class ARG_TYPE >

std::size_t bslstl::HashTable_HashWrapper< FUNCTOR >::operator()

(

ARG_TYPE &

arg

)

const

Call the wrapped functor with the specified arg and return the result. Note that ARG_TYPE will typically be deduced as a const type.

template<class FUNCTOR>

const FUNCTOR& bslstl::HashTable_HashWrapper< FUNCTOR >::functor

(

)

const

Return a reference providing non-modifiable access to the hash functor wrapped by this object.

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

• bslstl_hashtable.h