std::generator<Ref,V,Allocator>::begin
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std::generator 
 
generator::begin
/*iterator*/ begin();
 
 (since C++23) 
Pushes coroutine_ into *active_  stack, then evaluates coroutine_.resume().
Before invocation of begin() the coroutine_ must refer to a coroutine suspended at its initial suspend point.
[edit] Return value
An iterator whose coroutine_ member refers to the same coroutine as coroutine_ does.
[edit] Notes
It is an undefined behavior to call begin() more than once on the same generator object.
[edit] Example
 This section is incomplete
Reason: no example
Reason: no example