Update thE MSVC and clang compiler warnings.

.gitattributes

@@ -9,3 +9,4 @@
 *.hpp text
 *.cuh text
 *.cu text
+*.cmake text
\ No newline at end of file

CMake/compilerflags/AppleClang.cmake

@@ -16,5 +16,11 @@ list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-fPIC") # position indepe
 # warnings
 #############################################################################################################
 list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-Wall")
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-Wunreachable-code")
+
 list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-Wno-unused-function")
 list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-Wno-reorder-ctor")
+
+# temp:
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-Wno-sometimes-uninitialized")
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-Wno-inconsistent-missing-override")
\ No newline at end of file

CMake/compilerflags/MSVC.cmake

@@ -8,7 +8,22 @@ list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "-MP")     # enable multi-
 #############################################################################################################
 # warnings
 #############################################################################################################
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/W4") # highest warning level
+
+# With W4 the following warnings appear many times. As long they are not eliminated they are suppressed:
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4458") # C4458: declaration of 'XXX' hides class member
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4100") # C4100: 'XXX': unreferenced formal parameter
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4505") # C4505: 'XXX': unreferenced local function has been removed
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4244") # C4244: '=': conversion from 'int' to 'char', possible loss of data, triggered by algorithm(2216,24)
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4310") # C4310: cast truncates constant value, triggerd by muParserbase.h
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4127") # C4127: conditional expression is constant: e.g. sizeof(int)
+
+# Urgent FIXME: This warning should be activated and fixed:
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4701") # C4701: potentially uninitialized local variable 'lMaxX3' used
+
+
 list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4251") # disable needs to have dll interface
+list(APPEND CAB_COMPILER_ADDTIONAL_CXX_COMPILER_FLAGS "/wd4005") # disable macro redefinition (triggered by metis.h)
 
 #############################################################################################################
 # preprocessor definitions