[ITK-users] itk::LightObject does not expose operator<< in .h header

Matt McCormick matt.mccormick at kitware.com
Fri Mar 21 16:07:47 EDT 2014


A patch would be better :-)

On Fri, Mar 21, 2014 at 4:01 PM, Taylor Braun-Jones
<taylor at braun-jones.org> wrote:
> Thanks, that would be great. Should I file a bug?
>
> -- Taylor
>
>
> On Fri, Mar 21, 2014 at 3:26 PM, Matt McCormick <matt.mccormick at kitware.com>
> wrote:
>>
>> Hi Taylor,
>>
>> I think it would be reasonable to increase the visibility of that
>> function.
>>
>> Thanks,
>> Matt
>>
>> On Fri, Mar 21, 2014 at 2:38 PM, Taylor Braun-Jones
>> <taylor at braun-jones.org> wrote:
>> > Hello Insight-users,
>> >
>> > I'm trying to print an itk::LightObject-derived class with something
>> > like:
>> >
>> > MyClass::Pointer fooBar = MyClass::New();
>> > std::cout << *fooBar;
>> >
>> >
>> > But it doesn't seem to be possible because the declaration of operator<<
>> > is
>> > not exposed in itkLightObject.h (although one is defined in
>> > itkLightObject.cxx). I know I can use fooBar->Print(std::cout), but this
>> > doesn't work when I'm trying to print to a logging system that was
>> > designed
>> > to support any object with an overloaded operator<< defined. I am able
>> > to
>> > get things to work by defining the operator myself:
>> >
>> > namespace std
>> > {
>> > ostream &
>> > operator<<(ostream & os, const itk::LightObject & o)
>> > {
>> >    o.Print(os);
>> >    return os;
>> > }
>> > }
>> >
>> >
>> > But is this the intended usage?
>> >
>> > Thanks,
>> > Taylor
>> >
>> > _____________________________________
>> > Powered by www.kitware.com
>> >
>> > Visit other Kitware open-source projects at
>> > http://www.kitware.com/opensource/opensource.html
>> >
>> > Kitware offers ITK Training Courses, for more information visit:
>> > http://www.kitware.com/products/protraining.php
>> >
>> > Please keep messages on-topic and check the ITK FAQ at:
>> > http://www.itk.org/Wiki/ITK_FAQ
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://www.itk.org/mailman/listinfo/insight-users
>> >
>
>


More information about the Insight-users mailing list