Class coroutine<>::push_type

Class `coroutine<>::push_type`

#include <boost/coroutine2/coroutine.hpp>

template< typename Arg >
class coroutine<>::push_type
{
public:
    push_type() noexcept;

    template< typename Fn >
    push_type( Fn && fn, attributes const& attr = attributes() );

    template< typename Fn, typename StackAllocator >
    push_type( Fn && fn, attributes const& attr, StackAllocator stack_alloc);

    push_type( push_type const& other)=delete;

    push_type & operator=( push_type const& other)=delete;

    ~push_type();

    push_type( push_type && other) noexcept;

    push_type & operator=( push_type && other) noexcept;

    operator unspecified-bool-type() const noexcept;

    bool operator!() const noexcept;

    void swap( push_type & other) noexcept;

    push_type & operator()( Arg arg);
};

template< typename Arg >
void swap( push_type< Arg > & l, push_type< Arg > & r);

template< typename Arg >
range_iterator< push_type< Arg > >::type begin( push_type< Arg > &);

template< typename Arg >
range_iterator< push_type< Arg > >::type end( push_type< Arg > &);

`push_type()`

Effects:: Creates a coroutine representing not-a-coroutine.
Throws:: Nothing.

`template< typename Fn > push_type( Fn && fn, attributes const& attr)`

Preconditions:: size >= minimum_stacksize(), size <= maximum_stacksize() when ! is_stack_unbounded().
Effects:: Creates a coroutine which will execute fn. Argument attr determines stack clean-up and preserving floating-point registers.

`template< typename Fn, typename StackAllocator > push_type( Fn && fn, attributes const& attr, StackAllocator const& stack_alloc)`

Preconditions:: size >= minimum_stacksize(), size <= maximum_stacksize() when ! is_stack_unbounded().
Effects:: Creates a coroutine which will execute fn. Argument attr determines stack clean-up and preserving floating-point registers. For allocating/deallocating the stack stack_alloc is used.

`~push_type()`

Effects:: Destroys the context and deallocates the stack.

`push_type( push_type && other)`

Effects:: Moves the internal data of other to *this. other becomes not-a-coroutine.
Throws:: Nothing.

`push_type & operator=( push_type && other)`

Effects:: Destroys the internal data of *this and moves the internal data of other to *this. other becomes not-a-coroutine.
Throws:: Nothing.

`operator unspecified-bool-type() const`

Returns:: If *this refers to not-a-coroutine or the coroutine-function has returned (completed), the function returns false. Otherwise true.
Throws:: Nothing.

`bool operator!() const`

Returns:: If *this refers to not-a-coroutine or the coroutine-function has returned (completed), the function returns true. Otherwise false.
Throws:: Nothing.

`push_type & operator()(Arg arg)`

push_type& coroutine<Arg>::push_type::operator()(Arg);
push_type& coroutine<Arg&>::push_type::operator()(Arg&);
push_type& coroutine<void>::push_type::operator()();

Preconditions:: operator unspecified-bool-type() returns true for *this.
Effects:: Execution control is transferred to coroutine-function and the argument arg is passed to the coroutine-function.
Throws:: Exceptions thrown inside coroutine-function.

`void swap( push_type & other)`

Effects:: Swaps the internal data from *this with the values of other.
Throws:: Nothing.

Non-member function `swap()`

template< typename Arg >
void swap( push_type< Arg > & l, push_type< Arg > & r);

Effects:: As if 'l.swap( r)'.

Non-member function `begin( push_type< Arg > &)`

template< typename Arg >
range_iterator< push_type< Arg > >::type begin( push_type< Arg > &);

Returns:: Returns a range-iterator (output-iterator).

Non-member function `end( push_type< Arg > &)`

template< typename Arg >
range_iterator< push_type< Arg > >::type end( push_type< Arg > &);

Returns:: Returns a end range-iterator (output-iterator).
Note:: When first obtained from begin( push_type< R > &), or after some number of increment operations, an iterator will compare equal to the iterator returned by end( push_type< R > &) when the corresponding coroutine<>::push_type::operator bool would return false.