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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-12-27 11:20:59 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-02-05 01:24:35 +0200
commit36c15f32c95552107903604db4b3e63752e49378 (patch)
tree10fae0408cc6db209c4974146bc3688226473103 /src
parent79266225d2af742195f99be7c91c7d5356f7eb78 (diff)
libcamera: utils: Add reverse adapter for range-based loop
Add a utils::reverse() function that creates an adapter wrapping in iterable, such that range-based iteration over the adapter iterates over the iterable in reverse order. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Diffstat (limited to 'src')
-rw-r--r--src/libcamera/utils.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/libcamera/utils.cpp b/src/libcamera/utils.cpp
index e90375ae..c4098a74 100644
--- a/src/libcamera/utils.cpp
+++ b/src/libcamera/utils.cpp
@@ -464,6 +464,14 @@ std::string libcameraSourcePath()
* \return The value rounded up to the nearest multiple of \a alignment
*/
+/**
+ * \fn reverse(T &&iterable)
+ * \brief Wrap an iterable to reverse iteration in a range-based loop
+ * \param[in] iterable The iterable
+ * \return A value of unspecified type that, when used in a range-based for
+ * loop, will cause the loop to iterate over the \a iterable in reverse order
+ */
+
} /* namespace utils */
} /* namespace libcamera */