88 lines
1.7 KiB
C
88 lines
1.7 KiB
C
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#include <stdio.h>
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#include <winpr/crt.h>
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#include <winpr/windows.h>
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int TestAlignment(int argc, char* argv[])
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{
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void* ptr = nullptr;
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size_t alignment = 0;
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size_t offset = 0;
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WINPR_UNUSED(argc);
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WINPR_UNUSED(argv);
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/* Alignment should be 2^N where N is a positive integer */
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alignment = 16;
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offset = 8;
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/* _aligned_malloc */
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ptr = winpr_aligned_malloc(100, alignment);
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if (ptr == nullptr)
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{
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printf("Error allocating aligned memory.\n");
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return -1;
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}
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if (((size_t)ptr % alignment) != 0)
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{
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printf("This pointer, %p, is not aligned on %" PRIuz "\n", ptr, alignment);
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return -1;
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}
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/* _aligned_realloc */
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ptr = winpr_aligned_realloc(ptr, 200, alignment);
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if (((size_t)ptr % alignment) != 0)
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{
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printf("This pointer, %p, is not aligned on %" PRIuz "\n", ptr, alignment);
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return -1;
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}
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winpr_aligned_free(ptr);
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/* _aligned_offset_malloc */
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ptr = winpr_aligned_offset_malloc(200, alignment, offset);
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if (ptr == nullptr)
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{
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printf("Error reallocating aligned offset memory.");
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return -1;
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}
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if (((((size_t)ptr) + offset) % alignment) != 0)
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{
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printf("This pointer, %p, does not satisfy offset %" PRIuz " and alignment %" PRIuz "\n",
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ptr, offset, alignment);
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return -1;
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}
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/* _aligned_offset_realloc */
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ptr = winpr_aligned_offset_realloc(ptr, 200, alignment, offset);
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if (ptr == nullptr)
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{
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printf("Error reallocating aligned offset memory.");
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return -1;
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}
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if (((((size_t)ptr) + offset) % alignment) != 0)
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{
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printf("This pointer, %p, does not satisfy offset %" PRIuz " and alignment %" PRIuz "\n",
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ptr, offset, alignment);
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return -1;
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}
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/* _aligned_free works for both _aligned_malloc and _aligned_offset_malloc. free() should not be
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* used. */
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winpr_aligned_free(ptr);
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return 0;
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}
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