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/***************************************************************************
* tests/containers/test_vector_export.cpp
*
* Part of the STXXL. See http://stxxl.sourceforge.net
*
* Copyright (C) 2008 Johannes Singler <singler@ira.uka.de>
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
**************************************************************************/
//! \example containers/test_vector_export.cpp
//! This is an example of use of \c stxxl::vector::export_files
#include <iostream>
#include <algorithm>
#include <stxxl/vector>
#include <stxxl/scan>
typedef stxxl::int64 int64;
int main()
{
// use non-randomized striping to avoid side effects on random generator
typedef stxxl::VECTOR_GENERATOR<int64, 2, 2, (2* 1024* 1024), stxxl::striping>::result vector_type;
vector_type v(int64(64 * 1024 * 1024) / sizeof(int64));
stxxl::random_number32 rnd;
int offset = rnd();
STXXL_MSG("write " << v.size() << " elements");
stxxl::ran32State = 0xdeadbeef;
vector_type::size_type i;
// fill the vector with increasing sequence of integer numbers
for (i = 0; i < v.size(); ++i)
{
v[i] = i + offset;
STXXL_CHECK(v[i] == int64(i + offset));
}
v.flush();
STXXL_MSG("export files");
v.export_files("exported_");
return 0;
}
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