# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1647852241 -3600
# Node ID 5f6b13202e85fe3a2b744c44b59be7ada16972fc
# Parent  dfbe764995cf8e97f896af285a16139db981af10
fix for older gcc versions

diff -r dfbe764995cf -r 5f6b13202e85 OrthancFramework/Sources/Images/ImageProcessing.cpp
--- a/OrthancFramework/Sources/Images/ImageProcessing.cpp	Mon Mar 21 08:59:20 2022 +0100
+++ b/OrthancFramework/Sources/Images/ImageProcessing.cpp	Mon Mar 21 09:44:01 2022 +0100
@@ -3000,11 +3000,13 @@
     }
   }
 
-  
-  void ImageProcessing::Maximum(ImageAccessor& image,
-                                const ImageAccessor& other)
+
+  namespace
   {
-    struct F
+    // For older version of gcc, templated functors cannot be defined
+    // as types internal to functions, hence the anonymous namespace
+    
+    struct MaximumFunctor
     {
       void operator() (uint8_t& a, const uint8_t& b)
       {
@@ -3016,15 +3018,20 @@
         a = std::max(a, b);
       }
     };
-
+  }
+  
+
+  void ImageProcessing::Maximum(ImageAccessor& image,
+                                const ImageAccessor& other)
+  {
     switch (image.GetFormat())
     {
       case PixelFormat_Grayscale8:
-        ApplyImageOntoImage<uint8_t, F>(F(), image, other);
+        ApplyImageOntoImage<uint8_t, MaximumFunctor>(MaximumFunctor(), image, other);
         return;
 
       case PixelFormat_Grayscale16:
-        ApplyImageOntoImage<uint16_t, F>(F(), image, other);
+        ApplyImageOntoImage<uint16_t, MaximumFunctor>(MaximumFunctor(), image, other);
         return;
 
       default: