[Issue 20200] Make std.math.isPowerOf2 work for floating point numbers in CTFE

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20200

Nathan S. <n8sh.secondary at hotmail.com> changed:

           What    |Removed                     |Added
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            Summary|Make std.math.isPowerOf2    |Make std.math.isPowerOf2
                   |work in CTFE                |work for floating point
                   |                            |numbers in CTFE

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