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Function std.math.isNormal
Determines if x is normalized.
bool isNormal(X)
(
X x
) pure nothrow @nogc @trusted;
A normalized number must not be zero, subnormal, infinite nor NAN.
Parameters
Name | Description |
---|---|
x | a floating point number. |
Returns
true
if x is normalized.
Example
float f = 3;
double d = 500;
real e = 10e+48;
assert(isNormal(f));
assert(isNormal(d));
assert(isNormal(e));
f = d = e = 0;
assert(!isNormal(f));
assert(!isNormal(d));
assert(!isNormal(e));
assert(!isNormal(real .infinity));
assert(isNormal(-real .max));
assert(!isNormal(real .min_normal/4));
Authors
Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw and David Nadlinger
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.