| /* |
| * 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; |
| } |