pythonwebcoder
diff --git a/‎modules/core/include/opencv2/core/utility.hpp
Lines changed: 17 additions & 0 deletions b/‎modules/core/include/opencv2/core/utility.hpp
Lines changed: 17 additions & 0 deletions
diff --git a/‎modules/core/src/matrix.cpp
Lines changed: 0 additions & 5 deletions b/‎modules/core/src/matrix.cpp
Lines changed: 0 additions & 5 deletions
diff --git a/‎modules/features2d/src/akaze.cpp
Lines changed: 2 additions & 2 deletions b/‎modules/features2d/src/akaze.cpp
Lines changed: 2 additions & 2 deletions
@@ -444,6 +444,23 @@ static inline size_t alignSize(size_t sz, int n)
     return (sz + n-1) & -n;
 }
 
+/** @brief Integer division with result round up.
+
+Use this function instead of `ceil((float)a / b)` expressions.
+
+@sa alignSize
+*/
+static inline int divUp(int a, unsigned int b)
+{
+    CV_DbgAssert(a >= 0);
+    return (a + b - 1) / b;
+}
+/** @overload */
+static inline size_t divUp(size_t a, unsigned int b)
+{
+    return (a + b - 1) / b;
+}
+
 /** @brief Enables or disables the optimized code.
 
 The function can be used to dynamically turn on and off optimized code (code that uses SSE2, AVX,
 
@@ -3406,11 +3406,6 @@ static TransposeInplaceFunc transposeInplaceTab[] =
 
 #ifdef HAVE_OPENCL
 
-static inline int divUp(int a, int b)
-{
-    return (a + b - 1) / b;
-}
-
 static bool ocl_transpose( InputArray _src, OutputArray _dst )
 {
     const ocl::Device & dev = ocl::Device::getDefault();
 
@@ -113,12 +113,12 @@ namespace cv
                 if (descriptor_size == 0)
                 {
                     int t = (6 + 36 + 120) * descriptor_channels;
-                    return (int)ceil(t / 8.);
+                    return divUp(t, 8);
                 }
                 else
                 {
                     // We use the random bit selection length binary descriptor
-                    return (int)ceil(descriptor_size / 8.);
+                    return divUp(descriptor_size, 8);
                 }
 
             default:
Original file line number	Diff line number	Diff line change
`@@ -113,12 +113,12 @@ namespace cv`
`113`	`113`	`if (descriptor_size == 0)`
`114`	`114`	`{`
`115`	`115`	`int t = (6 + 36 + 120) * descriptor_channels;`
`116`		`- return (int)ceil(t / 8.);`
	`116`	`+ return divUp(t, 8);`
`117`	`117`	`}`
`118`	`118`	`else`
`119`	`119`	`{`
`120`	`120`	`// We use the random bit selection length binary descriptor`
`121`		`- return (int)ceil(descriptor_size / 8.);`
	`121`	`+ return divUp(descriptor_size, 8);`
`122`	`122`	`}`
`123`	`123`
`124`	`124`	`default:`