absl::FunctionRef

Synopsis

Declared in <absl/functional/function_ref.h>

template<typename T>
class FunctionRef;

Dummy class declaration to allow the partial specialization based on function types below.

Name	Description
`FunctionRef<R const(Args...)>`	FunctionRef

Name	Description
`FunctionRef<F>`	Deduces a `FunctionRef` wrapping a function pointer.
`FunctionRef<std::remove_pointer_t<decltype(Func)>>`	Deduces a `FunctionRef` wrapping a compile-time known free function.
`FunctionRef<M>`	Deduces a `FunctionRef` wrapping a compile-time known member pointer.
`FunctionRef<R(Args...)>`	Deduces a `FunctionRef` wrapping a compile-time known free function bound to an object argument.
`FunctionRef<std::invoke_result_t<decltype(Func), U&>()>`	Deduces a `FunctionRef` wrapping a compile-time known member function.