bslstl::Function_InvokerUtil Struct Reference

#include <bslstl_function_invokerutil.h>

Detailed Description

This struct is a namespace containing a single function template, invokerForFunc, that returns a pointer to a function that is used to invoke a callable object of a particular type.

See bslstl_function_invokerutil

Public Types
enum	{   e_Null , e_FunctionPtr , e_MemFunctionPtr , e_MemDataPtr ,   e_InplaceFunctor , e_OutofplaceFunctor }
typedef Function_Rep::GenericInvoker	GenericInvoker

Public Member Functions
template<class PROTOTYPE >
bslstl::Function_InvokerUtil::GenericInvoker *	invokerForFunc (const bsl::nullptr_t &)
template<class PROTOTYPE , class FUNC >
bslstl::Function_InvokerUtil::GenericInvoker *	invokerForFunc (const FUNC &f)

Static Public Member Functions
template<class PROTOTYPE >
static GenericInvoker *	invokerForFunc (const bsl::nullptr_t &)
template<class PROTOTYPE , class FUNC >
static GenericInvoker *	invokerForFunc (const FUNC &f)
static BSLA_NORETURN void	throwBadFunctionCall ()

Member Typedef Documentation

GenericInvoker

typedef Function_Rep::GenericInvoker bslstl::Function_InvokerUtil::GenericInvoker

Generic function pointer. This type is as close as we can get to void * for function pointers.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
e_Null
e_FunctionPtr
e_MemFunctionPtr
e_MemDataPtr
e_InplaceFunctor
e_OutofplaceFunctor

Member Function Documentation

invokerForFunc() [1/4]

template<class PROTOTYPE >

static GenericInvoker * bslstl::Function_InvokerUtil::invokerForFunc ( const bsl::nullptr_t &  )

static

Return a null pointer.

Note

Note that template argument PROTOTYPE must be supplied excplicitly, as there is no way to deduce it from the function arguments.

invokerForFunc() [2/4]

template<class PROTOTYPE >

bslstl::Function_InvokerUtil::GenericInvoker * bslstl::Function_InvokerUtil::invokerForFunc ( const bsl::nullptr_t &  )

inline

invokerForFunc() [3/4]

template<class PROTOTYPE , class FUNC >

static GenericInvoker * bslstl::Function_InvokerUtil::invokerForFunc ( const FUNC &  f )

static

Return a pointer to the invoker for a callable object of (template paramter) type FUNC. If the specified f object is a null pointer or null pointer-to-member, return a null pointer.

Note

Note that template argument PROTOTYPE must be supplied excplicitly, as there is no way to deduce it from the function arguments.

invokerForFunc() [4/4]

template<class PROTOTYPE , class FUNC >

bslstl::Function_InvokerUtil::GenericInvoker * bslstl::Function_InvokerUtil::invokerForFunc

(

const FUNC &

f

)

throwBadFunctionCall()

static BSLA_NORETURN void bslstl::Function_InvokerUtil::throwBadFunctionCall ( )

static

Throw a bsl::bad_function_call exception in an exception-enabled build; otherwise, invoke the currently installed assertion violation handler.

Note

Note that providing a function to throw an exception moves the code generated to throw the exception into just one place rather than inline in every function template instantiation that would call it. It also insulates the header files from the declaration of the exception class itself, so that only clients catching bad_function_call need to include its header.

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

• bslstl_function_invokerutil.h