Fixed/disabled warnings produced by GCC 7

mshabunin · mshabunin · commit 7eb106594406 · 2017-11-29T17:21:22.000+03:00
diff --git a/cmake/OpenCVCompilerOptions.cmake b/cmake/OpenCVCompilerOptions.cmake
@@ -128,6 +128,9 @@ if(CMAKE_COMPILER_IS_GNUCXX)
     add_extra_compiler_option(-Wno-unnamed-type-template-args)
     add_extra_compiler_option(-Wno-comment)
     add_extra_compiler_option(-Wno-implicit-fallthrough)
+    if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 7.2.0)
+      add_extra_compiler_option(-Wno-strict-overflow) # Issue is fixed in GCC 7.2.1
+    endif()
   endif()
   add_extra_compiler_option(-fdiagnostics-show-option)
 
diff --git a/modules/imgcodecs/src/grfmt_gdal.cpp b/modules/imgcodecs/src/grfmt_gdal.cpp
@@ -426,7 +426,8 @@ bool GdalDecoder::readData( Mat& img ){
         for( int y=0; y<nRows; y++ ){
 
             // get the entire row
-            band->RasterIO( GF_Read, 0, y, nCols, 1, scanline, nCols, 1, GDT_Float64, 0, 0);
+            CPLErr err = band->RasterIO( GF_Read, 0, y, nCols, 1, scanline, nCols, 1, GDT_Float64, 0, 0);
+            CV_Assert(err == CE_None);
 
             // set inside the image
             for( int x=0; x<nCols; x++ ){
diff --git a/modules/videoio/src/cap_openni2.cpp b/modules/videoio/src/cap_openni2.cpp
@@ -609,7 +609,7 @@ bool CvCapture_OpenNI2::setDepthGeneratorProperty( int propIdx, double propValue
                 if ( streams[CV_COLOR_STREAM].isValid() )
                 {
                     openni::ImageRegistrationMode mode = propValue != 0.0 ? openni::IMAGE_REGISTRATION_DEPTH_TO_COLOR : openni::IMAGE_REGISTRATION_OFF;
-                    if( !device.getImageRegistrationMode() == mode )
+                    if( device.getImageRegistrationMode() != mode )
                     {
                         if (device.isImageRegistrationModeSupported(mode))
                         {

Original file line number	Diff line number	Diff line change
`@@ -609,7 +609,7 @@ bool CvCapture_OpenNI2::setDepthGeneratorProperty( int propIdx, double propValue`
`609`	`609`	`if ( streams[CV_COLOR_STREAM].isValid() )`
`610`	`610`	`{`
`611`	`611`	`openni::ImageRegistrationMode mode = propValue != 0.0 ? openni::IMAGE_REGISTRATION_DEPTH_TO_COLOR : openni::IMAGE_REGISTRATION_OFF;`
`612`		`- if( !device.getImageRegistrationMode() == mode )`
	`612`	`+ if( device.getImageRegistrationMode() != mode )`
`613`	`613`	`{`
`614`	`614`	`if (device.isImageRegistrationModeSupported(mode))`
`615`	`615`	`{`