diff options
Diffstat (limited to 'compilerplugins/clang/test/classmemaccess.cxx')
| -rw-r--r-- | compilerplugins/clang/test/classmemaccess.cxx | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/classmemaccess.cxx b/compilerplugins/clang/test/classmemaccess.cxx new file mode 100644 index 000000000..05bb457f8 --- /dev/null +++ b/compilerplugins/clang/test/classmemaccess.cxx @@ -0,0 +1,36 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include <cstring> + +void f(struct Incomplete* p1, struct S* p2); + +struct S +{ + S(); +}; + +void f(struct Incomplete* p1, struct S* p2) +{ + S s; + // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}} + std::memset(&s, 0, sizeof s); + // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}} + std::memset(static_cast<void*>(&s), 0, sizeof s); + auto const disableWarning = static_cast<void*>(&s); + std::memset(disableWarning, 0, sizeof s); + S a[1][1]; + // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}} + std::memset(a, 0, sizeof a); + std::memset(p1, 0, 10); // conservatively assume Incomplete may be trivial + // expected-error@+1 {{writing to an object of non-trivial type 'S'; use assignment instead [loplugin:classmemaccess]}} + std::memset(p2, 0, 10); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |