Fix C4251 warnings (#1487)

tests/CLI/CLI.h

@@ -70,7 +70,9 @@ public:
     TestMappedTypeNonConstRefParam(const std::string);
     const TestMappedTypeNonConstRefParam& operator=(const std::string);
 
+    DISABLE_WARNING_ONCE(4251,
         std::string m_str;
+    )
 };
 
 class DLL_API TestMappedTypeNonConstRefParamConsumer

tests/CSharp/CSharp.h

@@ -60,7 +60,10 @@ public:
 protected:
     int P;
     TemplateInAnotherUnit<int> templateInAnotherUnit;
+
+    DISABLE_WARNING_ONCE(4251,
         std::string _name;
+    )
 };
 
 class DLL_API Quux
@@ -1122,12 +1125,15 @@ public:
     static const unsigned char UChr;
     static const int Int;
     static const float Float;   
-    static const std::string String;
     static const char ChrArray[2];
     static const int IntArray[2];
     static const float FloatArray[2];
     static const bool BoolArray[2];
     static const void* VoidPtrArray[2];
+
+    DISABLE_WARNING_ONCE(4251,
+        static const std::string String;
+    )
 };
 
 static constexpr double ConstexprCreateDoubleValue(double value) {

tests/CSharp/CSharpTemplates.h

@@ -33,7 +33,7 @@ class DLL_API Ignored
 };
 
 template <typename T>
-class IndependentFields : public T1
+class DLL_API IndependentFields : public T1
 {
     typedef T Type;
 public:
@@ -122,7 +122,7 @@ T IndependentFields<T>::staticDependent(const T& t)
 template <typename T>
 int IndependentFields<T>::getIndependent()
 {
-    return independent;
+    return static_cast<int>(independent);
 }
 
 template <typename X>
@@ -143,7 +143,7 @@ class Base
 };
 
 template <typename T>
-class DependentValueFields : public Base<T>
+class DLL_API DependentValueFields : public Base<T>
 {
 public:
     class Nested;
@@ -248,7 +248,7 @@ public:
 };
 
 template <typename T>
-class DependentPointerFields
+class DLL_API DependentPointerFields
 {
 public:
     DependentPointerFields(T t = 0);
@@ -318,7 +318,7 @@ void TwoTemplateArgs<K, V>::takeDependentPtrToSecondTemplateArg(const V& v)
 }
 
 template <typename T, typename D = IndependentFields<T>>
-class HasDefaultTemplateArgument
+class DLL_API HasDefaultTemplateArgument
 {
 public:
     HasDefaultTemplateArgument();
@@ -688,7 +688,7 @@ enum class UsedInTemplatedIndexer
 };
 
 template <typename T>
-class QFlags
+class DLL_API QFlags
 {
     typedef int Int;
     typedef int (*Zero);

tests/Common/Common.h

@@ -892,8 +892,11 @@ public:
     ~HasStdString();
     std::string testStdString(const std::string& s);
     std::string testStdStringPassedByValue(std::string s);    
-    std::string s;
     std::string& getStdString();
+
+    DISABLE_WARNING_ONCE(4251,
+        std::string s;
+    )
 };
 
 class DLL_API InternalCtorAmbiguity

tests/Encodings/Encodings.h

@@ -4,11 +4,14 @@
 class DLL_API Foo
 {
 public:
+    DISABLE_WARNING_ONCE(4251,
+        static std::string StringVariable;
+    )
+
     Foo();
     ~Foo();
 
     const char* Unicode;
-    static std::string StringVariable;
 
 	// TODO: VC++ does not support char16
 	// char16 chr16;    

tests/StandardLib/StandardLib.h

@@ -20,6 +20,7 @@ struct DLL_API TestVectors
     std::vector<int> GetIntVector();
     int SumIntVector(std::vector<int>& vec);
     
+    DISABLE_WARNING_ONCE(4251,
         // Should get mapped to List<int>
         std::vector<int> IntVector;
         // Should get mapped to List<IntPtr>
@@ -32,6 +33,7 @@ struct DLL_API TestVectors
         std::vector<IntWrapperValueType> IntWrapperValueTypeVector;
         // Should get mapped to List<IntWrapperValueType>
         VectorTypedef IntWrapperValueTypeVectorTypedef;
+    )
 };
 
 struct DLL_API OStreamTest

tests/Tests.h

@@ -20,6 +20,12 @@
 #define THISCALL __thiscall
 #endif
 
+#define DISABLE_WARNING_ONCE(id, block) \
+__pragma(warning(push)) \
+__pragma(warning(disable: id)) \
+block \
+__pragma(warning(pop))
+
 #else
 #define DLL_API __attribute__ ((visibility ("default")))
 
@@ -40,6 +46,8 @@
 #define THISCALL
 #endif
 
+#define DISABLE_WARNING_ONCE(id, block) block
+
 #endif
 
 #define CS_OUT

tests/VTables/VTables.h

@@ -17,7 +17,10 @@ public:
     virtual int append();
     virtual int append(int a);
     int callVirtualWithParameter(int a);
+
+    DISABLE_WARNING_ONCE(4251,
         std::string s;
+    )
 };
 
 DLL_API int FooCallFoo(Foo* foo);