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/*
* Copyright (c) 2004 Michael Stevens
* Use, modification and distribution are subject to 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)
*/
/*
* Test placement new and array placement new for uBLAS
* See if base pointer is effected by array count cookie
*/
#include <boost/numeric/ublas/storage.hpp>
#include <iostream>
#include <new>
// User defined type to capture base pointer on construction
class udt {
public:
udt () {
base_pointer = this;
}
~udt () {} // required for GCC prior to 3.4 to generate cookie
static udt* base_pointer;
};
udt* udt::base_pointer;
int main ()
{
udt a;
udt* ap = &a;
// Capture placement new offsets for a udt
new (ap) udt;
int new_offset = int (udt::base_pointer - ap);
new (ap) udt [1];
int array_new_offset = int (udt::base_pointer - ap);
// Print offsets - we expect 0,0 or 0,sizeof(std::size_t)
std::cout << new_offset <<','<< array_new_offset << std::endl;
// Return status
if (new_offset != 0)
return -1; // Very bad if new has an offset
#ifdef BOOST_UBLAS_USEFUL_ARRAY_PLACEMENT_NEW
bool expect_array_offset = false;
#else
bool expect_array_offset = true;
#endif
// Check match between config and array
if (!expect_array_offset && array_new_offset != 0) {
return -2; // Bad config should not enable array new
}
if (expect_array_offset && array_new_offset == 0) {
return -3; // Config could enable array new
}
return 0;
}
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