[libcamera-devel] [PATCH] libcamera: pipeline: fix c++20 compile warning
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Tue Nov 14 14:42:19 CET 2023
On Tue, Nov 14, 2023 at 12:53:04PM +0200, Laurent Pinchart via libcamera-devel wrote:
> Hi Brett,
>
> Thank you for your first libcamera patch :-)
>
> On Mon, Nov 13, 2023 at 09:52:44AM -0700, Brett Brotherton via libcamera-devel wrote:
> > fix -Wdeprecated-this-capture error when building with c++20 by
> > explicity naming this in the capture
>
> Nitpicking, s/fix/Fix/ and s/capture$/capture./
>
> No need to resend the patch for this, I'll update the commit message
> before pushing.
>
> Is this the only occurrence of implicit *this capture ? I'm happy we're
> not doing that bad :-)
>
> > Signed-off-by: Brett Brotherton <bbrotherton at google.com>
>
> Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
>
> I will run this through build testing and push the patch if no issues
> are found.
Unfortunately problems have been found :-(
../../src/libcamera/pipeline_handler.cpp:652:40: error: explicit capture of 'this' with a capture default of '=' is a C++20 extension [-Werror,-Wc++20-extensions]
media->disconnected.connect(this, [=, this]() { mediaDeviceDisconnected(media); });
^
> > ---
> > src/libcamera/pipeline_handler.cpp | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
> > index 9c74c6cf..2220cb92 100644
> > --- a/src/libcamera/pipeline_handler.cpp
> > +++ b/src/libcamera/pipeline_handler.cpp
> > @@ -649,7 +649,7 @@ void PipelineHandler::registerCamera(std::shared_ptr<Camera> camera)
> > */
> > void PipelineHandler::hotplugMediaDevice(MediaDevice *media)
> > {
> > - media->disconnected.connect(this, [=]() { mediaDeviceDisconnected(media); });
> > + media->disconnected.connect(this, [=, this]() { mediaDeviceDisconnected(media); });
> > }
> >
> > /**
--
Regards,
Laurent Pinchart
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