llvm-project/clang/test/SemaCXX/delete-non-virtual-dtor.cpp
Erik Pilkington 52791c6e28 Split -Wdelete-non-virtual-dtor into two groups
This group controls two diagnostics: deleting an abstract class with
a non-virtual dtor, which is a guaranteed crash, and deleting a
non-abstract polymorphic class with a non-virtual dtor, which is just
suspicious.

rdar://40380564

Differential revision: https://reviews.llvm.org/D56405

llvm-svn: 350856
2019-01-10 18:03:07 +00:00

31 lines
866 B
C++

// RUN: %clang_cc1 %s -verify -DDIAG1
// RUN: %clang_cc1 %s -verify -DDIAG1 -DDIAG2 -Wdelete-non-virtual-dtor
// RUN: %clang_cc1 %s -verify -DDIAG1 -Wmost -Wno-delete-non-abstract-non-virtual-dtor
// RUN: %clang_cc1 %s -verify -DDIAG2 -Wmost -Wno-delete-abstract-non-virtual-dtor
// RUN: %clang_cc1 %s -verify -Wmost -Wno-delete-non-virtual-dtor
#ifndef DIAG1
#ifndef DIAG2
// expected-no-diagnostics
#endif
#endif
struct S1 {
~S1() {}
virtual void abs() = 0;
};
void f1(S1 *s1) { delete s1; }
#ifdef DIAG1
// expected-warning@-2 {{delete called on 'S1' that is abstract but has non-virtual destructor}}
#endif
struct S2 {
~S2() {}
virtual void real() {}
};
void f2(S2 *s2) { delete s2; }
#ifdef DIAG2
// expected-warning@-2 {{delete called on non-final 'S2' that has virtual functions but non-virtual destructor}}
#endif