structured_task_group::~structured_task_group Destructor
Visual Studio 2012
Destroys a structured_task_group object. You are expected to call either the wait or run_and_wait method on the object prior to the destructor executing, unless the destructor is executing as a result of stack unwinding due to an exception.
~structured_task_group();
If the destructor runs as the result of normal execution (for example, not stack unwinding due to an exception) and neither the wait nor run_and_wait methods have been called, the destructor may throw a missing_wait exception.
