View source code
Display the source code in std/math/rounding.d from which thispage was generated on github.
Report a bug
If you spot a problem with this page, click here to create aBugzilla 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 usinglocal clone.

Function std.math.rounding.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
Edit
Run
Open in IDE
Application output
Running...

Authors

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

License

Boost License 1.0.