diff options
Diffstat (limited to 'test/std/utilities/memory/allocator.traits/allocator.traits.members/allocate.fail.cpp')
-rw-r--r-- | test/std/utilities/memory/allocator.traits/allocator.traits.members/allocate.fail.cpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/test/std/utilities/memory/allocator.traits/allocator.traits.members/allocate.fail.cpp b/test/std/utilities/memory/allocator.traits/allocator.traits.members/allocate.fail.cpp new file mode 100644 index 000000000..71201f0ef --- /dev/null +++ b/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}} +} |