Added basic version for windows

thk123 · thk123 · commit 9a68db323002 · 2018-04-19T15:55:25.000+01:00
Due to bug in the VS2013 C++ compiler, rethrow_if_nested is not supported. This implements a basic version for all but the most pathalogical cases (as described http://cplusplus.github.io/LWG/lwg-defects.html#2484)
diff --git a/src/util/unwrap_nested_exception.cpp b/src/util/unwrap_nested_exception.cpp
@@ -35,7 +35,18 @@ std::string unwrap_exception(const std::exception &e, int level)
 
   try
   {
+#ifndef _MSC_VER
     std::rethrow_if_nested(e);
+#else
+    // TODO(tkiley): Required due to bug in MSVC++ Compiler:
+    // TODO(tkiley): https://blogs.msdn.microsoft.com/vcblog/2016/01/22/vs-2015-update-2s-stl-is-c17-so-far-feature-complete/
+    const std::nested_exception *exception =
+      dynamic_cast<const std::nested_exception *>(&e);
+    if(exception)
+    {
+      exception->rethrow_nested();
+    }
+#endif
   }
   catch(const std::exception &e)
   {

Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,18 @@ std::string unwrap_exception(const std::exception &e, int level)`
`35`	`35`
`36`	`36`	`try`
`37`	`37`	`{`
	`38`	`+#ifndef _MSC_VER`
`38`	`39`	`std::rethrow_if_nested(e);`
	`40`	`+#else`
	`41`	`+ // TODO(tkiley): Required due to bug in MSVC++ Compiler:`
	`42`	`+ // TODO(tkiley): https://blogs.msdn.microsoft.com/vcblog/2016/01/22/vs-2015-update-2s-stl-is-c17-so-far-feature-complete/`
	`43`	`+ const std::nested_exception *exception =`
	`44`	`+ dynamic_cast<const std::nested_exception *>(&e);`
	`45`	`+ if(exception)`
	`46`	`+ {`
	`47`	`+ exception->rethrow_nested();`
	`48`	`+ }`
	`49`	`+#endif`
`39`	`50`	`}`
`40`	`51`	`catch(const std::exception &e)`
`41`	`52`	`{`