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8be3ae06fd
The fix in r306003 uncovered a pretty fundamental problem that libc++ implementation of std::result_of does not handle the prototype of open(2) correctly (presumably because it contains ...). This makes the whole function unusable in its current form, so I am also reverting the original commit (r305892), which introduced the function, at least until I figure out a way to solve the libc++ issue. llvm-svn: 306005
36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
//===- llvm/Support/Errno.h - Portable+convenient errno handling -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares some portable and convenient functions to deal with errno.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_ERRNO_H
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#define LLVM_SUPPORT_ERRNO_H
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#include <cerrno>
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#include <string>
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namespace llvm {
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namespace sys {
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/// Returns a string representation of the errno value, using whatever
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/// thread-safe variant of strerror() is available. Be sure to call this
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/// immediately after the function that set errno, or errno may have been
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/// overwritten by an intervening call.
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std::string StrError();
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/// Like the no-argument version above, but uses \p errnum instead of errno.
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std::string StrError(int errnum);
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} // namespace sys
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} // namespace llvm
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#endif // LLVM_SYSTEM_ERRNO_H
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