[Issue 18630] std.math must CTFE

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18630

Nicholas Wilson <iamthewilsonator at hotmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |iamthewilsonator at hotmail.co
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--- Comment #4 from Nicholas Wilson <iamthewilsonator at hotmail.com> ---
asin now works at compile time.

The rest still fail for the following reasons.

nextPow2  -- reinterpret
truncPow2 -- reinterpret
atan2     -- reinterpret
expi      -- asm
lround    -- no avail source
lrint     -- ditto
rndtol    -- ditto
uantize   -- ditto
frexp     -- reinterpret
ilogb     -- y.vu[3] is used before initialised
scalbn    -- asm

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