Thanks Marshall. Howard
On Jun 3, 2011, at 9:54 AM, Marshall Clow wrote: > Author: marshall > Date: Fri Jun 3 08:54:37 2011 > New Revision: 132545 > > URL: http://llvm.org/viewvc/llvm-project?rev=132545&view=rev > Log: > Tests for bad_typeid and bad_cast > > Added: > libcxxabi/trunk/test/test_aux_runtime.cpp > > Added: libcxxabi/trunk/test/test_aux_runtime.cpp > URL: > http://llvm.org/viewvc/llvm-project/libcxxabi/trunk/test/test_aux_runtime.cpp?rev=132545&view=auto > ============================================================================== > --- libcxxabi/trunk/test/test_aux_runtime.cpp (added) > +++ libcxxabi/trunk/test/test_aux_runtime.cpp Fri Jun 3 08:54:37 2011 > @@ -0,0 +1,64 @@ > +//===-------------------------- test_aux_runtime.cpp > ----------------------===// > +// > +// The LLVM Compiler Infrastructure > +// > +// This file is dual licensed under the MIT and the University of Illinois > Open > +// Source Licenses. See LICENSE.TXT for details. > +// > +//===----------------------------------------------------------------------===// > + > +#include <typeinfo> > +#include <iostream> > + > +// Test taken from 5.2.8.2 > +// When typeid is applied to a glvalue expression whose type is a > polymorphic > +// class type, (10.3), the result refers to a std::type_info object > +// representing the type of the most derived object (1.8) (that is, the > +// dynamic type) to which the glvalue refers. If the glvalue expression is > +// obtained by applying the unary * operator to a pointer(68) and the > pointer > +// is a null pointer value (4.10), the typeid expression throws the > +// std::bad_typeid exception (18.7.3). > +// > +// 68) If p is an expression of pointer type, then *p, (*p), *(p), > +// ((*p)), *((p)), and so on all meet this requirement. > +bool bad_typeid_test () { > + class A { virtual void f() {}}; > + class B { virtual void g() {}}; > + > + B *bp = NULL; > + try { typeid(*bp) == typeid (A); } > + catch ( const std::bad_typeid &bc ) { return true; } > + return false; > + } > + > + > +// The value of a failed cast to pointer type is the null pointer value of > +// the required result type. A failed cast to reference type throws > +// std::bad_cast (18.7.2). > +bool bad_cast_test () { > + class A { virtual void f() {}}; > + class B { virtual void g() {}}; > + class D : public virtual A, private B {}; > + > + D d; > + B *bp = (B*)&d; // cast needed to break protection > + try { D &dr = dynamic_cast<D&> (*bp); } > + catch ( const std::bad_cast &bc ) { return true; } > + return false; > + } > + > +int main ( int argc, char *argv [] ) { > + int ret_val = 0; > + > + if ( !bad_typeid_test ()) { > + std::cerr << "TypeID test failed!" << std::endl; > + ret_val = 1; > + } > + > + if ( !bad_cast_test ()) { > + std::cerr << "Bad cast test failed!" << std::endl; > + ret_val = 1; > + } > + > + return ret_val; > + } > > > _______________________________________________ > cfe-commits mailing list > [email protected] > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
