================ @@ -0,0 +1,97 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef TEST_STD_INPUT_OUTPUT_FILE_STREAMS_FSTREAMS_TEST_HELPERS_H +#define TEST_STD_INPUT_OUTPUT_FILE_STREAMS_FSTREAMS_TEST_HELPERS_H + +#include <cassert> +#include <concepts> +#include <cstdio> +#include <fstream> +#include <filesystem> +#include <type_traits> +#include <utility> + +#if defined(_WIN32) +# include <io.h> +# include <windows.h> +#else +# include <fcntl.h> +#endif + +#include "platform_support.h" +#include "test_macros.h" +#include "types.h" + +#if TEST_STD_VER >= 26 + +# include "check_assertion.h" + +inline bool is_handle_valid(NativeHandleT handle) { +# if defined(_WIN32) + BY_HANDLE_FILE_INFORMATION fileInformation; + return GetFileInformationByHandle(handle, &fileInformation)); +# elif __has_include(<unistd.h>) // POSIX + return fcntl(handle, F_GETFL) != -1 || errno != EBADF; +# else +# error "Provide a native file handle!" +# endif +} + +template <typename CharT, typename StreamT> +inline void test_native_handle() { + static_assert( + std::is_same_v<typename std::basic_filebuf<CharT>::native_handle_type, typename StreamT::native_handle_type>); + + StreamT f; + std::filesystem::path p = get_temp_file_name(); + + // non-const + { + f.open(p); + std::same_as<NativeHandleT> decltype(auto) handle = f.native_handle(); + assert(is_handle_valid(handle)); + assert(f.rdbuf()->native_handle() == handle); + assert(std::as_const(f).rdbuf()->native_handle() == handle); + f.close(); + assert(!is_handle_valid(handle)); + static_assert(noexcept(f.native_handle())); + } + // const + { + f.open(p); + std::same_as<NativeHandleT> decltype(auto) const_handle = std::as_const(f).native_handle(); + assert(is_handle_valid(const_handle)); + assert(f.rdbuf()->native_handle() == const_handle); + assert(std::as_const(f).rdbuf()->native_handle() == const_handle); + f.close(); + assert(!is_handle_valid(const_handle)); + static_assert(noexcept(std::as_const(f).native_handle())); + } +} + +template <typename StreamT> +inline void test_native_handle_assertion() { + StreamT f; + + // non-const + { TEST_LIBCPP_ASSERT_FAILURE(f.native_handle(), "File must be opened"); } + // const + { TEST_LIBCPP_ASSERT_FAILURE(std::as_const(f).native_handle(), "File must be opened"); } ---------------- Zingam wrote:
```suggestion // non-const TEST_LIBCPP_ASSERT_FAILURE(f.native_handle(), "File must be opened"); // const TEST_LIBCPP_ASSERT_FAILURE(std::as_const(f).native_handle(), "File must be opened"); ``` https://github.com/llvm/llvm-project/pull/76632 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
