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bx
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tests
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uint32_test.cpp

uint32_test.cpp 1.3 KB
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  1. /*
    2. 

  2.  * Copyright 2010-2016 Branimir Karadzic. All rights reserved.
    3. 

  3.  * License: https://github.com/bkaradzic/bx#license-bsd-2-clause
    4. 

  4.  */
    5. 

  5. 

  6. #include "test.h"
    7. 

  7. #include <bx/uint32_t.h>
    8. 

  8. 

  9. TEST(StrideAlign)
    10. 

  10. {
    11. 

  11. 	CHECK(0  == bx::strideAlign(0, 12) );
    12. 

  12. 	for (uint32_t ii = 0; ii < 12; ++ii)
    13. 

  13. 	{
    14. 

  14. 		CHECK(12 == bx::strideAlign(ii+1, 12) );
    15. 

  15. 	}
    16. 

  16. 

  17. 	CHECK(0  == bx::strideAlign16(0, 12) );
    18. 

  18. 	for (uint32_t ii = 0; ii < 12; ++ii)
    19. 

  19. 	{
    20. 

  20. 		CHECK(48 == bx::strideAlign16(ii+1, 12) );
    21. 

  21. 	}
    22. 

  22. }
    23. 

  23. 

  24. TEST(uint32_cnt)
    25. 

  25. {
    26. 

  26. 	CHECK( 0 == bx::uint32_cnttz(UINT32_C(1) ) );
    27. 

  27. 	CHECK( 0 == bx::uint32_cnttz_ref(UINT32_C(1) ) );
    28. 

  28. 

  29. 	CHECK(31 == bx::uint32_cntlz(UINT32_C(1) ) );
    30. 

  30. 	CHECK(31 == bx::uint32_cntlz_ref(UINT32_C(1) ) );
    31. 

  31. 

  32. 	CHECK( 0 == bx::uint64_cnttz(UINT64_C(1) ) );
    33. 

  33. 	CHECK( 0 == bx::uint64_cnttz_ref(UINT64_C(1) ) );
    34. 

  34. 

  35. 	CHECK(63 == bx::uint64_cntlz(UINT64_C(1) ) );
    36. 

  36. 	CHECK(63 == bx::uint64_cntlz_ref(UINT64_C(1) ) );
    37. 

  37. 

  38. 	CHECK( 1 == bx::uint32_cntbits(1) );
    39. 

  39. 	CHECK( 1 == bx::uint32_cntbits_ref(1) );
    40. 

  40. 

  41. 	CHECK(16 == bx::uint32_cntbits(UINT16_MAX) );
    42. 

  42. 	CHECK(16 == bx::uint32_cntbits_ref(UINT16_MAX) );
    43. 

  43. 

  44. 	CHECK(32 == bx::uint32_cntbits(UINT32_MAX) );
    45. 

  45. 	CHECK(32 == bx::uint32_cntbits_ref(UINT32_MAX) );
    46. 

  46. }
    47. 

  47. 

  48. TEST(uint32_part)
    49. 

  49. {
    50. 

  50. 	CHECK(UINT32_C(0x55555555) == bx::uint32_part1by1(UINT16_MAX) );
    51. 

  51. 	CHECK(UINT32_C(0x09249249) == bx::uint32_part1by2(0x3ff) );
    52. 

  52. }
    53.