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97 lines
2.2 KiB
Plaintext
97 lines
2.2 KiB
Plaintext
[/
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/ Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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/
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/ Distributed under the Boost Software License, Version 1.0. (See accompanying
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/ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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/]
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[section:ConvertibleToConstBuffer Convertible to const buffer requirements]
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A type that meets the requirements for convertibility to a const buffer must
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meet the requirements of `CopyConstructible` types (C++ Std, 20.1.3), and the
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requirements of `Assignable` types (C++ Std, 23.1).
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In the table below, `X` denotes a class meeting the requirements for
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convertibility to a const buffer, `a` and `b` denote values of type `X`, and
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`u`, `v` and `w` denote identifiers.
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[table ConvertibleToConstBuffer requirements
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[[expression][postcondition]]
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[
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[``
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const_buffer u(a);
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const_buffer v(a);
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``]
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[``
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buffer_cast<const void*>(u) == buffer_cast<const void*>(v)
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&& buffer_size(u) == buffer_size(v)
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``]
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]
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[
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[``
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const_buffer u(a);
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const_buffer v = a;
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``]
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[``
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buffer_cast<const void*>(u) == buffer_cast<const void*>(v)
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&& buffer_size(u) == buffer_size(v)
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``]
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]
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[
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[``
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const_buffer u(a);
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const_buffer v; v = a;
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``]
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[``
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buffer_cast<const void*>(u) == buffer_cast<const void*>(v)
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&& buffer_size(u) == buffer_size(v)
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``]
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]
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[
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[``
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const_buffer u(a);
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const X& v = a;
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const_buffer w(v);
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``]
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[``
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buffer_cast<const void*>(u) == buffer_cast<const void*>(w)
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&& buffer_size(u) == buffer_size(w)
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``]
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]
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[
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[``
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const_buffer u(a);
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X v(a);
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const_buffer w(v);
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``]
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[``
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buffer_cast<const void*>(u) == buffer_cast<const void*>(w)
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&& buffer_size(u) == buffer_size(w)
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``]
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]
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[
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[``
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const_buffer u(a);
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X v = a;
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const_buffer w(v);
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``]
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[``
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buffer_cast<const void*>(u) == buffer_cast<const void*>(w)
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&& buffer_size(u) == buffer_size(w)
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``]
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]
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[
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[``
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const_buffer u(a);
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X v(b); v = a;
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const_buffer w(v);
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``]
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[``
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buffer_cast<const void*>(u) == buffer_cast<const void*>(w)
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&& buffer_size(u) == buffer_size(w)
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``]
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]
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]
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[endsect]
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