Ticket #4119: lexicalCastNoExceptionsWorkaround.patch

lexical_cast.hpp

@@ -55 +55 @@
 namespace boost
 {
     // exception used to indicate runtime lexical_cast failure
-    class bad_lexical_cast : public std::bad_cast
+        class bad_lexical_cast :
+// workaround MSVC bug with std::bad_cast when _HAS_EXCEPTIONS == 0
+#if defined(BOOST_MSVC) && defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS
+                public std::exception
+#else
+                public std::bad_cast
+#endif
 
 #if defined(__BORLANDC__) && BOOST_WORKAROUND( __BORLANDC__, < 0x560 )
         // under bcc32 5.5.1 bad_cast doesn't derive from exception