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.trunc

Returns the integer portion of x, dropping the fractional portion. This is also known as "chop" rounding. pure on all platforms.

real trunc (
  real x
) pure nothrow @nogc @trusted;

Example

writeln(trunc(0.01)); // 0
writeln(trunc(0.49)); // 0
writeln(trunc(0.5)); // 0
writeln(trunc(1.5)); // 1

Authors

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

License

Boost License 1.0.