Merge pull request #23109 from seanm:misc-warnings

* Fixed clang -Wnewline-eof warnings
* Fixed all trivial clang -Wextra-semi and -Wc++98-compat-extra-semi warnings
* Removed trailing semi from various macros
* Fixed various -Wunused-macros warnings
* Fixed some trivial -Wdocumentation warnings
* Fixed some -Wdocumentation-deprecated-sync warnings
* Fixed incorrect indentation
* Suppressed some clang warnings in 3rd party code
* Fixed QRCodeEncoder::Params documentation.

---------

Co-authored-by: Alexander Smorkalov <alexander.smorkalov@xperience.ai>

modules/flann/include/opencv2/flann/composite_index.h

@@ -80,7 +80,6 @@ public:
      * @param inputData dataset containing the points to index
      * @param params Index parameters
      * @param d Distance functor
-     * @return
      */
     CompositeIndex(const Matrix<ElementType>& inputData, const IndexParams& params = CompositeIndexParams(),
                    Distance d = Distance()) : index_params_(params)

modules/flann/include/opencv2/flann/dynamic_bitset.h

@@ -97,7 +97,6 @@ public:
     }
 
     /** @brief set one bit to 0
-     * @param index
      */
     void reset(size_t index)
     {
@@ -108,7 +107,6 @@ public:
      * This function is useful when resetting a given set of bits so that the
      * whole bitset ends up being 0: if that's the case, we don't care about setting
      * other bits to 0
-     * @param index
      */
     void reset_block(size_t index)
     {
@@ -116,7 +114,6 @@ public:
     }
 
     /** resize the bitset so that it contains at least sz bits
-     * @param sz
      */
     void resize(size_t sz)
     {

modules/flann/include/opencv2/flann/logger.h

@@ -101,7 +101,6 @@ public:
      * Print log message
      * @param level Log level
      * @param fmt Message format
-     * @return
      */
     static int log(int level, const char* fmt, ...)
     {

modules/flann/include/opencv2/flann/lsh_table.h

@@ -214,8 +214,6 @@ public:
     }
 
     /** Get a bucket given the key
-     * @param key
-     * @return
      */
     inline const Bucket* getBucketFromKey(BucketKey key) const
     {
@@ -253,7 +251,6 @@ public:
     }
 
     /** Get statistics about the table
-     * @return
      */
     LshStats getStats() const;
 

modules/flann/include/opencv2/flann/random.h

@@ -106,7 +106,6 @@ public:
     /**
      * Constructor.
      * @param n Size of the interval from which to generate
-     * @return
      */
     UniqueRandom(int n)
     {

modules/flann/include/opencv2/flann/result_set.h

@@ -360,7 +360,6 @@ public:
     }
 
     /** The number of neighbors in the set
-     * @return
      */
     size_t size() const
     {
@@ -369,7 +368,6 @@ public:
 
     /** The distance of the furthest neighbor
      * If we don't have enough neighbors, it returns the max possible value
-     * @return
      */
     inline DistanceType worstDist() const CV_OVERRIDE
     {
@@ -490,7 +488,6 @@ public:
 
     /** The distance of the furthest neighbor
      * If we don't have enough neighbors, it returns the max possible value
-     * @return
      */
     inline DistanceType worstDist() const CV_OVERRIDE
     {