69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
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// This file is part of the uSTL library, an STL implementation.
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//
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// Copyright (c) 2005 by Mike Sharov <msharov@users.sourceforge.net>
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// This file is free software, distributed under the MIT License.
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#include "cmemlink.h"
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//#include "ofstream.h"
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#include "strmsize.h"
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#include "ualgo.h"
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#include "panic.h"
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namespace ustl {
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/// \brief Attaches the object to pointer \p p of size \p n.
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///
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/// If \p p is nullptr and \p n is non-zero, bad_alloc is thrown and current
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/// state remains unchanged.
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///
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void cmemlink::link (const void* p, size_type n)
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{
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if (!p && n)
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kpanict("bad_alloc");
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//throw bad_alloc (n);
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unlink();
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relink (p, n);
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}
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/// Writes the object to stream \p os
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/*void cmemlink::write (ostream& os) const
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{
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const written_size_type sz (size());
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assert (sz == size() && "No support for writing memblocks larger than 4G");
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os << sz;
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os.write (cdata(), sz);
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os.align (stream_align_of (sz));
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}
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/// Writes the object to stream \p os
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void cmemlink::text_write (ostringstream& os) const
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{
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os.write (begin(), readable_size());
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}*/
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/// Returns the number of bytes required to write this object to a stream.
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cmemlink::size_type cmemlink::stream_size (void) const noexcept
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{
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const written_size_type sz (size());
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return Align (stream_size_of (sz) + sz, stream_align_of(sz));
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}
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/// Writes the data to file \p "filename".
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/*void cmemlink::write_file (const char* filename, int mode) const
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{
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fstream f;
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f.exceptions (fstream::allbadbits);
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f.open (filename, fstream::out | fstream::trunc, mode);
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f.write (cdata(), readable_size());
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f.close();
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}*/
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/// Compares to memory block pointed by l. Size is compared first.
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bool cmemlink::operator== (const cmemlink& l) const noexcept
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{
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return l._size == _size &&
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(l._data == _data || 0 == memcmp (l._data, _data, _size));
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}
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} // namespace ustl
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