Disabled compiling warnings in case of symbols in cmake for 5.x

3rdparty/clapack/CMakeLists.txt

@@ -24,7 +24,7 @@ add_library(${the_target} STATIC ${lapack_srcs} ${runtime_srcs} ${lib_hdrs})
 
 ocv_warnings_disable(CMAKE_C_FLAGS -Wno-parentheses -Wno-uninitialized -Wno-array-bounds
     -Wno-implicit-function-declaration -Wno-unused -Wunused-parameter) # gcc/clang warnings
-ocv_warnings_disable(CMAKE_C_FLAGS /wd4244 /wd4554 /wd4723) # visual studio warnings
+ocv_warnings_disable(CMAKE_C_FLAGS /wd4244 /wd4554 /wd4723 /wd4819) # visual studio warnings
 
 set_target_properties(${the_target}
   PROPERTIES OUTPUT_NAME ${the_target}

3rdparty/openexr/CMakeLists.txt

@@ -120,6 +120,7 @@ ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4334) # vs2005 Win64
 ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4244) # vs2008
 ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4267) # vs2008 Win64
 ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4456) # vs2015
+ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4819) # vs2019 Win64
 
 if(MSVC AND CV_ICC)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Qrestrict")

3rdparty/openjpeg/openjp2/CMakeLists.txt

@@ -39,6 +39,8 @@ ocv_warnings_disable(CMAKE_C_FLAGS
     -Wunused-function   # v2.4.0: Clang
 )
 
+ocv_warnings_disable(CMAKE_C_FLAGS /wd4819) # vs2019 Win64
+
 add_library(${OPENJPEG_LIBRARY_NAME} STATIC ${OPENJPEG_SRCS})
 
 target_compile_definitions(${OPENJPEG_LIBRARY_NAME} PUBLIC OPJ_STATIC)

cmake/OpenCVCompilerOptions.cmake

@@ -437,6 +437,7 @@ if(MSVC)
     ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4275) # non dll-interface class 'std::exception' used as base for dll-interface class 'cv::Exception'
     ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4512) # Assignment operator could not be generated
     ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4589) # Constructor of abstract class 'cv::ORB' ignores initializer for virtual base class 'cv::Algorithm'
+    ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4819) # Symbols like delta or epsilon cannot be represented
   endif()
 
   if(CV_ICC AND NOT ENABLE_NOISY_WARNINGS)

modules/3d/src/usac.hpp

@@ -495,14 +495,14 @@ struct SPRT_history {
     /*
      * delta:
      * The probability of a data point being consistent
-     * with a ‘bad’ model is modeled as a probability of
+     * with a 'bad' model is modeled as a probability of
      * a random event with Bernoulli distribution with parameter
-     * δ : p(1|Hb) = δ.
+     * delta : p(1|Hb) = delta.
 
      * epsilon:
-     * The probability p(1|Hg) = ε
+     * The probability p(1|Hg) = epsilon
-     * that any randomly chosen data point is consistent with a ‘good’ model
+     * that any randomly chosen data point is consistent with a 'good' model
-     * is approximated by the fraction of inliers ε among the data
+     * is approximated by the fraction of inliers epsilon among the data
      * points
 
      * A is the decision threshold, the only parameter of the Adapted SPRT

modules/calib/src/calibration_handeye.cpp

@@ -838,7 +838,7 @@ static void calibrateRobotWorldHandEyeShah(const std::vector<Mat_<double>>& cRw,
 
 //Reference:
 //A. Li, L. Wang, and D. Wu, "Simultaneous robot-world and hand-eye calibration using dual-quaternions and kronecker product"
-//International Journal of Physical Sciences, vol. 5, pp. 1530–1536, 2010.
+//International Journal of Physical Sciences, vol. 5, pp. 1530-1536, 2010.
 //Matlab code: http://math.loyola.edu/~mili/Calibration/
 static void calibrateRobotWorldHandEyeLi(const std::vector<Mat_<double>>& cRw, const std::vector<Mat_<double>>& ctw,
                                          const std::vector<Mat_<double>>& gRb, const std::vector<Mat_<double>>& gtb,

modules/core/include/opencv2/core/cuda.hpp

@@ -694,8 +694,16 @@ public:
     //! Allocates a new GpuMat of given size and type.
     CV_WRAP GpuMat getBuffer(int rows, int cols, int type);
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
     //! Allocates a new GpuMat of given size and type.
     CV_WRAP GpuMat getBuffer(Size size, int type) { return getBuffer(size.height, size.width, type); }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
     //! Returns the allocator associated with the stream.
     CV_WRAP Ptr<GpuMat::Allocator> getAllocator() const { return allocator_; }

modules/core/include/opencv2/core/cuda.inl.hpp

@@ -75,6 +75,11 @@ GpuMat::GpuMat(Size size_, int type_, Allocator* allocator_)
         create(size_.height, size_.width, type_);
 }
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
 inline
 GpuMat::GpuMat(int rows_, int cols_, int type_, Scalar s_, Allocator* allocator_)
     : flags(0), rows(0), cols(0), step(0), data(0), refcount(0), datastart(0), dataend(0), allocator(allocator_)
@@ -96,6 +101,9 @@ GpuMat::GpuMat(Size size_, int type_, Scalar s_, Allocator* allocator_)
         setTo(s_);
     }
 }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
 inline
 GpuMat::GpuMat(const GpuMat& m)
@@ -158,11 +166,19 @@ GpuMat GpuMat::clone() const
     return m;
 }
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
 inline
 void GpuMat::copyTo(OutputArray dst, InputArray mask) const
 {
     copyTo(dst, mask, Stream::Null());
 }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
 inline
 GpuMat& GpuMat::setTo(Scalar s)
@@ -176,6 +192,11 @@ GpuMat& GpuMat::setTo(Scalar s, InputArray mask)
     return setTo(s, mask, Stream::Null());
 }
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
 inline
 void GpuMat::convertTo(OutputArray dst, int rtype) const
 {
@@ -187,6 +208,9 @@ void GpuMat::convertTo(OutputArray dst, int rtype, double alpha, double beta) co
 {
     convertTo(dst, rtype, alpha, beta, Stream::Null());
 }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
 inline
 void GpuMat::convertTo(OutputArray dst, int rtype, double alpha, Stream& stream) const
@@ -646,6 +670,11 @@ Event::Event(const Ptr<Impl>& impl)
 // Initialization & Info
 //===================================================================================
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
 inline
 bool TargetArchs::has(int major, int minor)
 {
@@ -663,6 +692,9 @@ DeviceInfo::DeviceInfo()
 {
     device_id_ = getDevice();
 }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
 inline
 DeviceInfo::DeviceInfo(int device_id)
@@ -671,6 +703,11 @@ DeviceInfo::DeviceInfo(int device_id)
     device_id_ = device_id;
 }
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
 inline
 int DeviceInfo::deviceID() const
 {
@@ -699,6 +736,9 @@ bool DeviceInfo::supports(FeatureSet feature_set) const
     int version = majorVersion() * 10 + minorVersion();
     return version >= feature_set;
 }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
 
 }} // namespace cv { namespace cuda {

modules/core/include/opencv2/core/matx.hpp

@@ -685,11 +685,19 @@ Matx<_Tp,m,n>::Matx(_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp
     for(int i = 16; i < channels; i++) val[i] = _Tp(0);
 }
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
 template<typename _Tp, int m, int n> inline
 Matx<_Tp, m, n>::Matx(const _Tp* values)
 {
     for( int i = 0; i < channels; i++ ) val[i] = values[i];
 }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
 template<typename _Tp, int m, int n> inline
 Matx<_Tp, m, n>::Matx(std::initializer_list<_Tp> list)

modules/core/include/opencv2/core/opengl.hpp

@@ -703,10 +703,18 @@ cv::ogl::Texture2D::Format cv::ogl::Texture2D::format() const
 
 ///////
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
 inline
 cv::ogl::Arrays::Arrays() : size_(0)
 {
 }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
 inline
 int cv::ogl::Arrays::size() const

modules/core/include/opencv2/core/utils/filesystem.private.hpp

@@ -36,7 +36,7 @@ namespace cv { namespace utils { namespace fs {
  * Provides interprocess synchronization mechanism.
  * Platform dependent.
  *
- * Supports multiple readers / single writer access pattern (RW / readers–writer / shared-exclusive lock).
+ * Supports multiple readers / single writer access pattern (RW / readers-writer / shared-exclusive lock).
  *
  * File must exist.
  * File can't be re-used (for example, I/O operations via std::fstream is not safe)

modules/features2d/src/affine_feature.cpp

@@ -41,7 +41,7 @@
 
 /*
  Guoshen Yu, Jean-Michel Morel, ASIFT: An Algorithm for Fully Affine
- Invariant Comparison,  Image Processing On Line, 1 (2011), pp. 11–38.
+ Invariant Comparison,  Image Processing On Line, 1 (2011), pp. 11-38.
  https://doi.org/10.5201/ipol.2011.my-asift
  */
 

modules/objdetect/test/test_qrcode_encode.cpp

@@ -318,9 +318,9 @@ TEST(Objdetect_QRCode_Encode_Kanji, regression)
     Mat qrcode;
 
     const int testing_versions = 3;
-    std::string input_infos[testing_versions] = {"\x82\xb1\x82\xf1\x82\xc9\x82\xbf\x82\xcd\x90\xa2\x8a\x45", // こんにちは世界
+    std::string input_infos[testing_versions] = {"\x82\xb1\x82\xf1\x82\xc9\x82\xbf\x82\xcd\x90\xa2\x8a\x45", // "Hello World" in Japanese
-                                                 "\x82\xa8\x95\xa0\x82\xaa\x8b\xf3\x82\xa2\x82\xc4\x82\xa2\x82\xdc\x82\xb7", // お腹が空いています
+                                                 "\x82\xa8\x95\xa0\x82\xaa\x8b\xf3\x82\xa2\x82\xc4\x82\xa2\x82\xdc\x82\xb7", // "I am hungry" in Japanese
-                                                 "\x82\xb1\x82\xf1\x82\xc9\x82\xbf\x82\xcd\x81\x41\x8e\x84\x82\xcd\x8f\xad\x82\xb5\x93\xfa\x96\x7b\x8c\xea\x82\xf0\x98\x62\x82\xb5\x82\xdc\x82\xb7" // こんにちは、私は少し日本語を話します
+                                                 "\x82\xb1\x82\xf1\x82\xc9\x82\xbf\x82\xcd\x81\x41\x8e\x84\x82\xcd\x8f\xad\x82\xb5\x93\xfa\x96\x7b\x8c\xea\x82\xf0\x98\x62\x82\xb5\x82\xdc\x82\xb7" // "Hello, I speak a little Japanese" in Japanese
                                                 };
 
     for (int i = 0; i < testing_versions; i++)

modules/stitching/include/opencv2/stitching/detail/warpers.hpp

@@ -503,6 +503,11 @@ class CV_EXPORTS PlaneWarperGpu : public PlaneWarper
 public:
     PlaneWarperGpu(float scale = 1.f) : PlaneWarper(scale) {}
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
     Rect buildMaps(Size src_size, InputArray K, InputArray R, OutputArray xmap, OutputArray ymap) CV_OVERRIDE
     {
         Rect result = buildMaps(src_size, K, R, d_xmap_, d_ymap_);
@@ -536,6 +541,9 @@ public:
         d_dst_.download(dst);
         return result;
     }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
     Rect buildMaps(Size src_size, InputArray K, InputArray R, cuda::GpuMat & xmap, cuda::GpuMat & ymap);
 
@@ -557,6 +565,11 @@ class CV_EXPORTS SphericalWarperGpu : public SphericalWarper
 public:
     SphericalWarperGpu(float scale) : SphericalWarper(scale) {}
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
     Rect buildMaps(Size src_size, InputArray K, InputArray R, OutputArray xmap, OutputArray ymap) CV_OVERRIDE
     {
         Rect result = buildMaps(src_size, K, R, d_xmap_, d_ymap_);
@@ -573,6 +586,9 @@ public:
         d_dst_.download(dst);
         return result;
     }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
     Rect buildMaps(Size src_size, InputArray K, InputArray R, cuda::GpuMat & xmap, cuda::GpuMat & ymap);
 
@@ -589,6 +605,11 @@ class CV_EXPORTS CylindricalWarperGpu : public CylindricalWarper
 public:
     CylindricalWarperGpu(float scale) : CylindricalWarper(scale) {}
 
+// WARNING: unreachable code using Ninja
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(push)
+#pragma warning(disable: 4702)
+#endif
     Rect buildMaps(Size src_size, InputArray K, InputArray R, OutputArray xmap, OutputArray ymap) CV_OVERRIDE
     {
         Rect result = buildMaps(src_size, K, R, d_xmap_, d_ymap_);
@@ -605,6 +626,9 @@ public:
         d_dst_.download(dst);
         return result;
     }
+#if defined _MSC_VER && _MSC_VER >= 1920
+#pragma warning(pop)
+#endif
 
     Rect buildMaps(Size src_size, InputArray K, InputArray R, cuda::GpuMat & xmap, cuda::GpuMat & ymap);