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Module std.math.traits

This is a submodule of std.math.

It contains several functions for introspection on numerical values.


copysign(to, from)
isFinite(x) Determines if x is finite.
isIdentical(x, y) Is the binary representation of x identical to y?
isInfinity(x) Determines if x is ±∞.
isNaN(x) Determines if x is NaN.
isNormal(x) Determines if x is normalized.
isPowerOf2(x) Check whether a number is an integer power of two.
isSubnormal(x) Determines if x is subnormal.
sgn(x) Returns -1 if x < 0, x if x == 0, 1 if x > 0, and NAN if x==NAN.
signbit(x) Return 1 if sign bit of e is set, 0 if not.


Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw and David Nadlinger


Boost License 1.0.