forked from boostorg/system
31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
////
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Copyright 2003-2017 Beman Dawes
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Distributed under the Boost Software License, Version 1.0.
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See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt
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////
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[#history]
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# History
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:idprefix: history_
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http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1975.html[N1975],
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Filesystem Library Proposal for TR2, accepted for Library Technical
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Report 2 (TR2) at the Berlin meeting, included additional components to
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supplement the Standard Library's Diagnostics clause. Since then, these error
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reporting components have received wider public scrutiny and enhancements have
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been made to the design. The enhanced version has been used by
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http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2054.pdf[N2054],
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Networking Library Proposal for TR2, demonstrating that these error reporting
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components are useful beyond the original Filesystem Library.
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The original proposal viewed error categories as a binary choice between
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`errno` (i.e. POSIX-style) and the native operating system's error
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codes. The proposed components now allow as many additional error categories as
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are needed by either implementations or by users. The need to support additional
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error categories, for example, occurs in some networking library implementations
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because they are built on top of the POSIX `getaddrinfo` API that
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uses error codes not based on `errno`.
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