Deprecated. A functor map that takes only one argument at invocation time, and returns a value. More...

#include <rw/functor/map/RWTFunctorMapR1.h>

Inheritance diagram for RWTFunctorMapR1< SR, Key >:

Public Types
typedef unsigned(*	hash_function) (const Key &)

typedef Key	key_type

Public Types inherited from RWTFunctorR1< SR, Key >
typedef SR(*	CallerSignature) (Key)

typedef Key	S1Type

typedef SR	SRType

Public Member Functions
	RWTFunctorMapR1 (const RWTFunctorMapR1< SR, Key > &second)

	RWTFunctorMapR1 (hash_function hf, size_t size=RW_FUNCTOR_MAP_CAPACITY)

	~RWTFunctorMapR1 (void)

bool	add (Key key, RWTFunctorR0< SR > functor)

void	clear (void)

bool	contains (Key key) const

size_t	entries (void) const

bool	find (Key key, RWTFunctorR0< SR > &functor) const

RWTFunctorR0< SR >	getDefault (void) const

SR	operator() (Key key) const

RWTFunctorMapR1< SR, Key > &	operator= (const RWTFunctorMapR1< SR, Key > &second)

bool	remove (Key key)

void	resize (size_t size)

void	setDefault (RWTFunctorR0< SR > functor)

Public Member Functions inherited from RWTFunctorR1< SR, Key >
	RWTFunctorR1 (const RWTFunctor< SR(Key)> &second)

	RWTFunctorR1 (const RWTFunctorR1< SR, Key > &second)

	RWTFunctorR1 (RWStaticCtor)

	RWTFunctorR1 (RWTFunctorR1Imp< SR, Key > *functorImp)

	RWTFunctorR1 (void)

	~RWTFunctorR1 (void)

RWTFunctorR1Imp< SR, Key > &	body (void) const

RWTFunctorR1< SR, Key > &	operator= (const RWTFunctor< SR(Key)> &second)

RWTFunctorR1< SR, Key > &	operator= (const RWTFunctorR1< SR, Key > &second)

Detailed Description

template<class SR, class Key>
class RWTFunctorMapR1< SR, Key >

Deprecated: As of SourcePro 12.5, use RWTValHashMap<Key, RWTFunctor<SR()>> instead.

The RWTFunctorMapR1 class represents the functor maps that take only one argument at invocation time, and return a value. Since this single argument is the key into the map, the functors held in the map take no arguments, and are RWTFunctorR0 functors.

Functor maps allow functors to be grouped together in a key/value table structure. They add functors to the map with a corresponding key of type key_type, used later to invoke the desired functor.

Example: #include <rw/functor/map/RWTFunctorMapR1.h>

#include <rw/functor/functorR0.h>

#include <rw/cstring.h>

// Functions that we want to wrap in functors:

class BankAccount {

public:

float getBalance() { return 1234.56f; }

float getInterest() { return 61.51f; }

};

int main() {

BankAccount myAcct;

// Create new RWTFunctorR0s to be the values in the map.

RWTFunctorR0<float> balanceFunctor = rwtMakeFunctorR0(

(float (*)(void))0, myAcct, &BankAccount::getBalance);

RWTFunctorR0<float> interestFunctor = rwtMakeFunctorR0(

(float (*)(void))0, myAcct, &BankAccount::getInterest);

// Create keys with which to associate the values.

RWCString balanceKey = "balance";

RWCString interestKey = "interest";

// Declare a new map. A complete, but empty instance now exists.

RWTFunctorMapR1<float, RWCString> fmap(RWCString::hash);

// Add something to the map to make it useful.

fmap.add(balanceKey, balanceFunctor);

fmap.add(interestKey, interestFunctor);

// Invoking the map with the key "balance" results in the

// balanceFunctor being called.

float balance = fmap("balance");

// Invoking the map with the key "interest" results in the

// interestFunctor being called.

float interest = fmap("interest");

std::cout << "Account balance is " << balance << std::endl;

std::cout << "Interest earned this year is " << interest << std::endl;

return 0;

}

RWCString
Offers powerful and convenient facilities for manipulating strings.
Definition stdcstring.h:826

RWCString::hash
static unsigned hash(const RWCString &str)
Definition stdcstring.h:4413

RWTFunctorMapR1
Deprecated. A functor map that takes only one argument at invocation time, and returns a value.
Definition RWTFunctorMapR1.h:109

RWTFunctorR0
Deprecated. A functor that is invoked without any arguments and whose invocation returns a value.
Definition RWTFunctorR0.h:134

rwtMakeFunctorR0
RWTFunctorR0< SR > rwtMakeFunctorR0(SR(*caller)(void), DR(*callee)(void))
Definition rwtMakeFunctorR0.h:85

OUTPUT:
Account balance is 1234.56

Interest earned this year is 61.51