Removed CLang warnings

Signed-off-by: NGines Hidalgo <gineshidalgo99@gmail.com>

doc/release_notes.md

@@ -421,8 +421,9 @@ OpenPose Library - Release Notes
     3. Added Asynchronous mode to Python API.
     4. Added `DOWNLOAD_SERVER` variable to CMake. It specifies the link where the models and 3rd party libraries will be downloaded from.
     5. Installation documentation highly simplified and improved.
-    6. Removed all compiler warnings for Ubuntu 20.04 and removed some for Windows 10.
+    6. Removed all compiler warnings for Ubuntu 20.04 (GCC and Clang) as well as some for Windows 10.
 2. Functions or parameters renamed:
+    1. `USE_MKL` disabled by default in Ubuntu. Reason: Not compatible with non-intel CPUs and Ubuntu 20.
 3. Main bugs fixed:
     1. 90 and 270-degree rotations working again.
     2. C++ tutorial API demos only try to cv::imshow the image if it is not empty (avoding the assert that it would trigger otherwise).

include/openpose/thread/thread.hpp

@@ -120,7 +120,7 @@ namespace op
         {
             stopAndJoin();
             spIsRunning = isRunningSharedPtr;
-            *spIsRunning = {true};
+            *spIsRunning = true;
             threadFunction();
         }
         catch (const std::exception& e)
@@ -136,7 +136,7 @@ namespace op
         {
             opLog("", Priority::Low, __LINE__, __FUNCTION__, __FILE__);
             stopAndJoin();
-            *spIsRunning = {true};
+            *spIsRunning = true;
             mThread = {std::thread{&Thread::threadFunction, this}};
         }
         catch (const std::exception& e)
@@ -209,7 +209,7 @@ namespace op
     {
         try
         {
-            *spIsRunning = {false};
+            *spIsRunning = false;
         }
         catch (const std::exception& e)
         {

src/openpose/3d/poseTriangulation.cpp

@@ -21,6 +21,7 @@ namespace op
         catch (const std::exception& e)
         {
             error(e.what(), __LINE__, __FUNCTION__, __FILE__);
+            return false;
         }
     }
 

src/openpose/core/matrix.cpp

@@ -104,6 +104,7 @@ namespace op
         catch (const std::exception& e)
         {
             error(e.what(), __LINE__, __FUNCTION__, __FILE__);
+            return nullptr;
         }
     }
 
@@ -116,6 +117,7 @@ namespace op
         catch (const std::exception& e)
         {
             error(e.what(), __LINE__, __FUNCTION__, __FILE__);
+            return nullptr;
         }
     }
 

src/openpose/pose/poseExtractorNet.cpp

@@ -344,7 +344,7 @@ namespace op
             opLog("Property " + std::to_string((int)property)
                 + " set from " + std::to_string(propertyElement)
                 + " to " + std::to_string(value), Priority::High);
-            propertyElement = {value};
+            propertyElement = value;
         }
         catch (const std::exception& e)
         {