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#include <thrust/fill.h>
#include <thrust/mr/new.h>
#include <unittest/unittest.h>
template <typename MemoryResource>
void TestAlignment(MemoryResource memres, std::size_t size, std::size_t alignment)
{
void* ptr = memres.do_allocate(size, alignment);
ASSERT_EQUAL(reinterpret_cast<std::size_t>(ptr) % alignment, 0u);
char* char_ptr = reinterpret_cast<char*>(ptr);
thrust::fill(char_ptr, char_ptr + size, char{});
memres.do_deallocate(ptr, size, alignment);
}
static const std::size_t MinTestedSize = 32;
static const std::size_t MaxTestedSize = 8 * 1024;
static const std::size_t TestedSizeStep = 1;
static const std::size_t MinTestedAlignment = 16;
static const std::size_t MaxTestedAlignment = 4 * 1024;
static const std::size_t TestedAlignmentShift = 1;
void TestNewDeleteResourceAlignedAllocation()
{
for (std::size_t size = MinTestedSize; size <= MaxTestedSize; size += TestedSizeStep)
{
for (std::size_t alignment = MinTestedAlignment; alignment <= MaxTestedAlignment;
alignment <<= TestedAlignmentShift)
{
TestAlignment(thrust::mr::new_delete_resource(), size, alignment);
}
}
}
DECLARE_UNITTEST(TestNewDeleteResourceAlignedAllocation);
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