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// This file is part of the uSTL library, an STL implementation.
//
// Copyright (c) 2005 by Mike Sharov <msharov@users.sourceforge.net>
// This file is free software, distributed under the MIT License.
#include "mistream.h"
#include "ustdxept.h"
namespace ustl {
/// Reads the object from stream \p s
void memlink::read (istream& is)
{
written_size_type n = 0;
is >> n;
if (!is.verify_remaining ("read", "ustl::memlink", n))
return;
if (n > size())
USTL_THROW(length_error ("memlink can not increase the size of the linked storage for reading"));
resize (n);
is.read (data(), n);
is.align (stream_align_of (n));
}
/// Fills the linked block with the given pattern.
/// \arg start Offset at which to start filling the linked block
/// \arg p Pointer to the pattern.
/// \arg elSize Size of the pattern.
/// \arg elCount Number of times to write the pattern.
/// Total number of bytes written is \p elSize * \p elCount.
///
void memlink::fill (iterator start, const void* p, size_type elSize, size_type elCount)
{
assert (data() || !elCount || !elSize);
assert (start >= begin() && start + elSize * elCount <= end());
if (elSize == 1)
fill_n (start, elCount, *reinterpret_cast<const uint8_t*>(p));
else while (elCount--)
start = copy_n (const_iterator(p), elSize, start);
}
} // namespace ustl
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