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      std::packaged_task::packaged_task

      De cppreference.com

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      C++
       
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      this_thread namespace
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      this_thread namespace
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      Generic lock management
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      Variáveis ​​de condição
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      Condition variables
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      std::packaged_task
      Funções de membro
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      Member functions
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      packaged_task::packaged_task
      packaged_task::~packaged_task
      packaged_task::operator=
      packaged_task::valid
      packaged_task::swap
      Obtendo o resultado
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      Getting the result
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      packaged_task::get_future
      Execução
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      Execution
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      packaged_task::operator()
      packaged_task::make_ready_at_thread_exit
      packaged_task::reset
       
      <tbody> </tbody>
      packaged_task()
      		 (1)
      template <class F> explicit packaged_task(F&& f)
      		 (2)
      template <class F, class Allocator> explicit packaged_task(std::allocator_arg_t, const Allocator& a, F&& f)
      		 (3)
      packaged_task(const packaged_task&) = delete
      		 (4)
      packaged_task(packaged_task&& rhs)
      		 (5)
      1) Constructs a std::packaged_task object with no task and no shared state.
      2) Constructs a std::packaged_task object with a shared state and a copy of the task, initialized with std::forward<F>(f).
      3) Constructs a std::packaged_task object with a shared state and a copy of the task, initialized with std::forward<F>(f). Uses the provided allocator to allocate memory necessary to store the task.
      4) The copy constructor is deleted, std::packaged_task is move-only.
      Nota: C + 11 não especifica const aqui, este é o defect 2067.
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      Note: C++11 does not specify const here, this is the defect 2067.
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      5) Constructs a std::packaged_task with the shared state and task formerly owned by rhs, leaving rhs with no shared state and a moved-from task.

      Parâmetros

      f - the callable target (function, member function, lambda-expression, functor) to execute
      a - the allocator to use when storing the task
      rhs -
      o std::packaged_task para mover de
      Original:
      the std::packaged_task to move from
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      Exceções

      1)

      noexcept specification:  
      <tbody> </tbody>
      noexcept
        (desde C++11)

      2-3) Any exceptions thrown by copy/move constructor of f and possiblly std::bad_alloc if the allocation fails.

      5)

      noexcept specification:  
      <tbody> </tbody>
      noexcept
        (desde C++11)

      Exemplo

      Esta seção está incompleta
      Motivo: sem exemplo