std.math.traits

This is a submodule of std.math.

It contains several functions for introspection on numerical values.

Members

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