Create an empty function object using the specified allocator.
Declared in <bslstl_function.h>
function(
std::allocator_arg_t allocatorArg,
allocator_type const& allocator,
nullptr_t unused) noexcept;Create an empty function object. Optionally specify an allocator (e.g., the address of a bslma::Allocator object) to supply memory; otherwise, the default allocator is used.
| Name | Description |
|---|---|
| allocatorArg | allocator-argument tag (unused) |
| allocator | allocator used to supply memory |
| unused | null pointer literal selecting the empty state |