[Issue 5323] std.math: struct FloatingPointControl, duplicate code and assumes X86

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=5323

--- Comment #4 from Iain Buclaw <ibuclaw at gdcproject.org> ---
Both struct FloatingPointControl and Ieeeflags still have their own private
enums.  Since these values should be mirrored somewhere in druntime stdc (it
looks like the me of five years ago couldn't work out where when searching
through the libc headers), then yes this is still a valid refactoring.

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