std::function<R(Args...)>::assign
From cppreference.com
< cpp | utility | functional | function
| template< class F, class Alloc > void assign( F&& f, const Alloc& alloc ); |
(since C++11) (removed in C++17) |
|
Initializes the target with f. The alloc is used to allocate memory for any internal data structures that the function might use.
Equivalent to function(std::allocator_arg, alloc, std::forward<F>(f)).swap(*this);.
Parameters
| f | - | callable function to initialize the target with |
| alloc | - | allocator to use to allocate memory for the internal data structures |
Return value
(none)
Exceptions
May throw implementation-defined exceptions.
See also
| assigns a new target (public member function) |