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lines 301-347 of file: example/multi_thread/multi_chkpoint_two.cpp
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{xrst_begin multi_chkpoint_two_takedown}

Multi-Threaded chkpoint_two Take Down
#####################################

Syntax
******
*ok* = ``multi_chkpoint_two_takedown`` ( *square_root* )

Purpose
*******
This routine gathers up the results for each thread and
frees memory that was allocated by :ref:`multi_chkpoint_two_setup-name` .

Thread
******
It is assumed that this function is called by thread zero
and all the other threads are blocked (waiting).

square_root
***********
This argument has prototype

   ``vector<double>&`` *square_root*

The input value of *square_root* does not matter.
Upon return,
it has the same size and is the element by element square root of
:ref:`multi_chkpoint_two_setup@y_squared` .

ok
**
This return value has prototype

   ``bool`` *ok*

If it is false,
``multi_chkpoint_two_takedown`` detected an error.

Source
******
{xrst_literal
   // BEGIN TAKEDOWN C++
   // END TAKEDOWN C++
}

{xrst_end multi_chkpoint_two_takedown}