http://d.puremagic.com/issues/show_bug.cgi?id=6126

           Summary: std.parallelism does not re-throw exception
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Mac OS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: robert@octarineparrot.com


--- Comment #0 from Robert Clipsham <robert@octarineparrot.com> 2011-06-08 21:17:51 BST ---
The following code:
----
import std.exception;
import std.parallelism;

void foo(int task)
{
    enforce(task != 4);
}

void main()
{
    int[] tasks = [1, 2, 3];
    taskPool.put(task!foo(4));
    foreach (task; taskPool.parallel(tasks))
    {
        foo(task);
    }
}
----
Does not re-throw the exception when the task uses .put() then .parallel() is
used to run the tasks. Changing the enforcement to == causes three exceptions
to be thrown as expected.

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http://d.puremagic.com/issues/show_bug.cgi?id=6126


David Simcha <dsimcha@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID


--- Comment #1 from David Simcha <dsimcha@yahoo.com> 2011-06-08 19:30:43 PDT ---
Exceptions thrown from within tasks are re-thrown when you call done(),
workForce(), yieldForce(), or spinForce() on the Task object.  You created an
anonymous task and never called any of these functions.  The following slightly
modified code does re-throw the exception.

import std.exception;
import std.parallelism;

void foo(int task)
{
    enforce(task != 4);
}

void main()
{
    int[] tasks = [1, 2, 3];
    auto t = task!foo(4);
    taskPool.put(t);
    foreach (task; taskPool.parallel(tasks))
    {
        foo(task);
    }

    t.yieldForce();
}

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