Changes between Initial Version and Version 1 of Ticket #869, comment 11


Ignore:
Timestamp:
Sep 19, 2019, 4:39:28 AM (5 years ago)
Author:
goatbar

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  • Ticket #869, comment 11

    initial v1  
    1 The test I was using when looking at this issue:
    2 
    3 {{{#!cpp
    4     // zeroLowerBits.
    5     template<>
    6     template<>
    7     void object::test<4>()
    8     {
    9         constexpr int64 val = static_cast<int64>(0xffffffffffffffffull);
    10         ensure_equals(sizeof(val), 8);
    11 
    12         ensure_equals(CommonBits::zeroLowerBits(val, -1), 0);
    13         ensure_equals(CommonBits::zeroLowerBits(val, 0), 0);
    14         ensure_equals(CommonBits::zeroLowerBits(val, 1), -2);
    15         ensure_equals(CommonBits::zeroLowerBits(val, 2), -4);
    16         ensure_equals(CommonBits::zeroLowerBits(val, 16), -65536);
    17         ensure_equals(CommonBits::zeroLowerBits(val, 31), -2147483648ll);
    18         ensure_equals(CommonBits::zeroLowerBits(val, 32), -4294967296ll);
    19         ensure_equals(CommonBits::zeroLowerBits(val, 62), -4611686018427387904ll);
    20         ensure_equals(static_cast<uint64_t>(CommonBits::zeroLowerBits(val, 62)), 0xc000000000000000ull);
    21         ensure_equals(static_cast<uint64_t>(CommonBits::zeroLowerBits(val, 63)), 0x8000000000000000ull);
    22         ensure_equals(CommonBits::zeroLowerBits(val, 64), 0);
    23         ensure_equals(CommonBits::zeroLowerBits(val, 10000), 0);
    24     }
    25 }}}
     1Thanks!