Meta‐function for detecting traits of free function pointer types.

Synopsis

Declared in <bslmf_functionpointertraits.h>

template<class t_PROTOTYPE>
struct FunctionPointerTraits;

Description

This class gives information about the specified t_PROTOTYPE. The general definition gives no information, but specializations for function pointers types define nested types ResultType, ArgumentList, and Linkage.

Enums

Name

Description

Unnamed enum

Compile‐time flag indicating whether t_PROTOTYPE is a function pointer.

Specializations

Name

Description

FunctionPointerTraits<t_PROTOTYPE volatile*>

Partial specialization for volatile‐qualified function pointer types.

FunctionPointerTraits<t_PROTOTYPE const*>

Partial specialization for const‐qualified function pointer types.

FunctionPointerTraits<t_PROTOTYPE const volatile*>

Partial specialization for const‐volatile‐qualified function pointer types.

FunctionPointerTraits<t_BSLMF_RETURN(*)(t_ARGS...) noexcept>

Specialization for function pointers that return t_BSLMF_RETURN and accept a fixed number of arguments

FunctionPointerTraits<t_BSLMF_RETURN(*)(t_ARGS..., ...) noexcept>

Specialization for function pointers that return t_BSLMF_RETURN and accept variable (C‐style varargs) number of arguments

Derived Classes

Name

Description

FunctionPointerTraits<t_PROTOTYPE const volatile*>

Partial specialization for const‐volatile‐qualified function pointer types.

FunctionPointerTraits<t_PROTOTYPE const*>

Partial specialization for const‐qualified function pointer types.

FunctionPointerTraits<t_PROTOTYPE volatile*>

Partial specialization for volatile‐qualified function pointer types.

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