156ab87500
See: * https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319 * https://discourse.llvm.org/t/rfc-project-hand-in-hand-llvm-libc-libc-code-sharing/77701 We're dropping support for C++03 for Zig due to the first change; it would be insane to ship 1018 duplicate header files just for this outdated use case. As a result of the second change, I had to bring in a subset of the headers from llvm-libc since libc++ now depends on these. Hopefully we can continue to get away with not copying the entirety of llvm-libc.
48 lines
1.4 KiB
C++
Vendored
48 lines
1.4 KiB
C++
Vendored
//===-- Implementation header for libc_errno --------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_SRC_ERRNO_LIBC_ERRNO_H
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#define LLVM_LIBC_SRC_ERRNO_LIBC_ERRNO_H
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#include "src/__support/macros/attributes.h"
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#include "src/__support/macros/config.h"
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#include "src/__support/macros/properties/architectures.h"
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#include "hdr/errno_macros.h"
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// This header is to be consumed by internal implementations, in which all of
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// them should refer to `libc_errno` instead of using `errno` directly from
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// <errno.h> header.
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// Unit and hermetic tests should:
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// - #include "src/errno/libc_errno.h"
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// - NOT #include <errno.h>
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// - Only use `libc_errno` in the code
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// - Depend on libc.src.errno.errno
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// Integration tests should:
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// - NOT #include "src/errno/libc_errno.h"
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// - #include <errno.h>
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// - Use regular `errno` in the code
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// - Still depend on libc.src.errno.errno
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namespace LIBC_NAMESPACE_DECL {
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extern "C" int *__llvm_libc_errno() noexcept;
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struct Errno {
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void operator=(int);
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operator int();
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};
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extern Errno libc_errno;
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} // namespace LIBC_NAMESPACE_DECL
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#endif // LLVM_LIBC_SRC_ERRNO_LIBC_ERRNO_H
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