diff options
author | Marshall Clow <mclow.lists@gmail.com> | 2017-11-26 05:55:38 +0300 |
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committer | Marshall Clow <mclow.lists@gmail.com> | 2017-11-26 05:55:38 +0300 |
commit | 3fddff51ba2b4d713dad95ca97681f004dc822c9 (patch) | |
tree | 0e46cf78b8bc8a9c8fb4c94fd2068508aea1e97c /libcxx/test | |
parent | a1da5e4ce743352b916c4d0378cb945b76c1d22d (diff) |
More of P0600; marking allocation routines as [[nodiscard]]
llvm-svn: 318992
Diffstat (limited to 'libcxx/test')
4 files changed, 137 insertions, 0 deletions
diff --git a/libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.members/allocate_size.fail.cpp b/libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.members/allocate_size.fail.cpp new file mode 100644 index 000000000000..c5244a0d1bbd --- /dev/null +++ b/libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.members/allocate_size.fail.cpp @@ -0,0 +1,29 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 +// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8 + +// <memory> + +// template <class OuterAlloc, class... InnerAllocs> +// class scoped_allocator_adaptor + +// pointer allocate(size_type n); + +#include <scoped_allocator> +#include <cassert> + +#include "allocators.h" + +int main() +{ + std::scoped_allocator_adaptor<A1<int>> a; + a.allocate(10); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} +} diff --git a/libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.members/allocate_size_hint.fail.cpp b/libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.members/allocate_size_hint.fail.cpp new file mode 100644 index 000000000000..622147c9cf21 --- /dev/null +++ b/libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.members/allocate_size_hint.fail.cpp @@ -0,0 +1,29 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 +// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8 + +// <memory> + +// template <class OuterAlloc, class... InnerAllocs> +// class scoped_allocator_adaptor + +// pointer allocate(size_type n, const_void_pointer hint); + +#include <scoped_allocator> +#include <cassert> + +#include "allocators.h" + +int main() +{ + std::scoped_allocator_adaptor<A1<int>> a; + a.allocate(10, (const void*)0); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} +} diff --git a/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.members/allocate.fail.cpp b/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.members/allocate.fail.cpp new file mode 100644 index 000000000000..71201f0ef0d9 --- /dev/null +++ b/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.members/allocate.fail.cpp @@ -0,0 +1,51 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// <memory> + +// template <class Alloc> +// struct allocator_traits +// { +// static pointer allocate(allocator_type& a, size_type n); +// ... +// }; + +// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 +// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8 + +#include <memory> +#include <cstdint> +#include <cassert> + +#include "test_macros.h" + +template <class T> +struct A +{ + typedef T value_type; + + value_type* allocate(std::size_t n) + { + assert(n == 12); + return reinterpret_cast<value_type*>(static_cast<std::uintptr_t>(0xEEADBEEF)); + } + value_type* allocate(std::size_t n, const void* p) + { + assert(n == 11); + assert(p == 0); + return reinterpret_cast<value_type*>(static_cast<std::uintptr_t>(0xFEADBEEF)); + } +}; + +int main() +{ + A<int> a; + std::allocator_traits<A<int> >::allocate(a, 10); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} + std::allocator_traits<A<int> >::allocate(a, 10, nullptr); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} +} diff --git a/libcxx/test/std/utilities/memory/default.allocator/allocator.members/allocate.fail.cpp b/libcxx/test/std/utilities/memory/default.allocator/allocator.members/allocate.fail.cpp new file mode 100644 index 000000000000..490309eddd6e --- /dev/null +++ b/libcxx/test/std/utilities/memory/default.allocator/allocator.members/allocate.fail.cpp @@ -0,0 +1,28 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// <memory> + +// allocator: +// pointer allocate(size_type n, allocator<void>::const_pointer hint=0); + +// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 +// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8 + +#include <memory> +#include <cassert> + +#include "test_macros.h" + +int main() +{ + std::allocator<int> a; + a.allocate(3); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} + a.allocate(3, nullptr); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} +} |