Fixed deprecation warning about std::uncaught_exception in c++17 for msvc

doc/changelog.qbk

@@ -17,6 +17,7 @@ Not yet released
 * Fixed move-only type support in constraints
 * Added support for dereferencing in mock::equal
 * Added support for movable objects in mock::retrieve
+* Fixed deprecation warning about std::uncaught_exception in c++17 for msvc
 
 [endsect]
 

include/turtle/config.hpp

@@ -94,4 +94,11 @@
 #   endif
 #endif
 
+#if defined(__cplusplus) && (__cplusplus >= 201703L) || \
+    defined(_MSC_VER) && (_MSC_VER >= 1900)
+#   ifndef MOCK_NO_UNCAUGHT_EXCEPTIONS
+#       define MOCK_UNCAUGHT_EXCEPTIONS
+#   endif
+#endif
+
 #endif // MOCK_CONFIG_HPP_INCLUDED

include/turtle/detail/function.hpp

@@ -86,6 +86,15 @@ namespace detail
 
         E* e_;
     };
+
+    inline int uncaught_exceptions()
+    {
+#ifdef MOCK_UNCAUGHT_EXCEPTIONS
+        return std::uncaught_exceptions();
+#else
+        return std::uncaught_exception() ? 1 : 0;
+#endif
+    }
 }
 } // mock
 

include/turtle/detail/function_impl_template.hpp

@@ -44,10 +44,11 @@ namespace detail
             : context_( 0 )
             , valid_( true )
             , mutex_( boost::make_shared< mutex >() )
+            , exceptions_( uncaught_exceptions() )
         {}
         virtual ~function_impl()
         {
-            if( valid_ && ! std::uncaught_exception() )
+            if( valid_ && exceptions_ >= uncaught_exceptions() )
                 for( expectations_cit it = expectations_.begin();
                     it != expectations_.end(); ++it )
                     if( ! it->verify() )
@@ -300,6 +301,7 @@ namespace detail
         expectations_type expectations_;
         context* context_;
         mutable bool valid_;
+        const int exceptions_;
         const boost::shared_ptr< mutex > mutex_;
     };
 }