Component-private base providing representation and call operator for bsl::function.
Declared in <bslstl_function.h>
template<
class RET,
class... ARGS>
class Function_Variadic<RET(ARGS...)>
: public Function_ArgTypes<RET(ARGS...)>This component-private class template contains the physical representation and provides the variadic interfaces for bsl::function (see class and component documentation for bsl::function). bsl::function publicly inherits from an instantiation of this template. This implementation class exists to 1) minimize the amount of variadic template expansion required in C++03 using the sim_cpp11_features.pl utility and 2) work around issues with the Sun CC compiler, which has trouble with argument type deduction when a template argument has a partial specialization (as Function_Variadic does). bsl::function does not have a partial specialization and delegates to the Function_Variadic base class only those parts of the interface and implementation that depend on decomposing the function prototype into a return type and variadic list of argument types.
| Name | Description |
|---|---|
Function_ArgTypes<RET(ARGS...)> | Component-private metafunction providing nested argument typedefs for bsl::function. |
| Name | Description |
|---|---|
allocator_type | This typedef is an alias to the allocator type of the representation. |
result_type | This typedef is an alias to the return type of PROTOTYPE. |
| Name | Description |
|---|---|
Function_Variadic [constructor] | Create an empty object using the specified allocator. |
operator() | Invoke the target with args..., or throw if this object is empty. |
| Name | Description |
|---|---|
d_rep | Non-templated representation of this function wrapper. |
| Name | Description |
|---|---|
bsl::function | Forward declaration. |