diff libcxxabi/test/cxa_bad_cast.pass.cpp @ 150:1d019706d866

LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
parents
children 2e18cbf3894f
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libcxxabi/test/cxa_bad_cast.pass.cpp	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,55 @@
+//===----------------------- cxa_bad_cast.pass.cpp ------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03
+
+#include <cxxabi.h>
+#include <cassert>
+#include <stdlib.h>
+#include <exception>
+#include <typeinfo>
+
+class Base {
+  virtual void foo() {};
+};
+
+class Derived : public Base {};
+
+Derived &test_bad_cast(Base& b) {
+  return dynamic_cast<Derived&>(b);
+}
+
+Base gB;
+
+void my_terminate() { exit(0); }
+
+int main ()
+{
+    // swap-out the terminate handler
+    void (*default_handler)() = std::get_terminate(); 
+    std::set_terminate(my_terminate);
+
+#ifndef LIBCXXABI_HAS_NO_EXCEPTIONS
+    try {
+#endif
+        Derived &d = test_bad_cast(gB);
+        assert(false);
+        ((void)d);
+#ifndef LIBCXXABI_HAS_NO_EXCEPTIONS
+    } catch (std::bad_cast) {
+        // success
+        return 0;
+    } catch (...) {
+        assert(false);
+    }
+#endif
+
+    // failure, restore the default terminate handler and fire
+    std::set_terminate(default_handler);
+    std::terminate();
+}