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List:       orocos-dev
Subject:    [Orocos-Dev] boost::bind
From:       Sander.Vandenbroucke () vandewiele ! com (Vandenbroucke Sander)
Date:       2006-04-20 9:09:57
Message-ID: CC092C670C482A4C954AB4D13743B60A0207789F () vdwmar13 ! vandewiele ! local
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Hi,

I created a template for a Task which can execute a member function
instead of a RunnableInterface, pretty much like an Event but with one
call-back.

In the constructor I expect a 'SlotFunction':

typedef boost::function<void()> SlotFunction;

MyPriorityTask(Seconds period, SlotFunction& _f)
		:PeriodicTask(period,
PriorityThread<Priority>::Instance(), 0, false)
{
	f = _f;
}

The compiler fails when I use my task:

MyPriorityTask<25> myTask(1, boost::bind(&LedBlink::step, &Blink0));

test.cpp:233: error: no matching function for call to
`ORO_CoreLib::MyPriorityTask<25>::MyPriorityTask(int,
boost::_bi::bind_t<void, boost::_mfi::mf0<void, LedBlink>,
boost::_bi::list1<boost::_bi::value<LedBlink*> > >)'
VDWTask.hpp:24: note: candidates are:
ORO_CoreLib::MyPriorityTask<25>::MyPriorityTask(const
ORO_CoreLib::MyPriorityTask<25>&)
VDWTask.hpp:44: note:
ORO_CoreLib::MyPriorityTask<Priority>::MyPriorityTask(ORO_CoreLib::secs,
ORO_CoreLib::nsecs, boost::function<void ()(), std::allocator<void> >&)
[with int Priority = 25]
VDWTask.hpp:34: note:
ORO_CoreLib::MyPriorityTask<Priority>::MyPriorityTask(ORO_CoreLib::Secon
ds, boost::function<void ()(), std::allocator<void> >&) [with int
Priority = 25]


Using

boost::function<void()> f = boost::bind(&LedBlink::step, &Blink0);
MyPriorityTask<25> myTask(1, boost::bind(&LedBlink::step, &Blink0));

Works just fine. Any hints?

Sander.

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