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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-01-25 19:15:22 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-02-04 21:00:38 +0200
commit515211e8efd1412c09ae0bd30b6382b27b85036f (patch)
tree8d83c8867b352beca60565ea5fbdfbde14e5571d /src/cam/options.h
parent6dfa2040820d44584a1c5430f42dfc9b1ea56c9a (diff)
libcamera: geometry: Mark const functions with __nodiscard
Geometry classes generally have two sets of functions, one that operates on the object and modifies it (e.g. Rectangle::scaleBy()), and one that performs the same operations by instead return a modified copy of the object, leaving the original untouched (e.g.Rectangle::scaledBy()). As the names are close, they can easily be mistaken, with the const version used instead of the in-place version. To catch these errors at compile time, mark the const versions with __nodiscard, as there is no use case for calling them without using the result of the call. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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