[Issue 20197] Make std.math.isIdentical work in CTFE

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20197

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

           What    |Removed                     |Added
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          Component|installer                   |phobos

--- Comment #1 from Nathan S. <n8sh.secondary at hotmail.com> ---
Actually it doesn't require this since in CTFE there is no way to construct a
real nan with a payload that would be lost when casting to double.

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