View source code
Display the source code in std/math.d from which this page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using local clone.

Function std.math.isFinite

Determines if x is finite.

bool isFinite(X) (
  X x
) pure nothrow @nogc @trusted;

Parameters

NameDescription
x a floating point number.

Returns

true if x is finite.

Example

assert( isFinite(1.23f));
assert( isFinite(float.max));
assert( isFinite(float.min_normal));
assert(!isFinite(float.nan));
assert(!isFinite(float.infinity));

Authors

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

License

Boost License 1.0.