nextDown
fn
real nextDown(real x) @safe pure nothrow @nogcCalculate the next smallest floating point value before x.
Return the greatest number less than x that is representable as a real; thus, it gives the previous point on the IEEE number line.
| x, nextDown(x) | ∞, real.max | ±0.0, -real.min_normal*real.epsilon | -real.max, -∞ | -∞, -∞ | NaN, NaN |
|---|
fn
double nextDown(double x) @safe pure nothrow @nogcditto
fn
float nextDown(float x) @safe pure nothrow @nogcditto