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Function `std.math.rounding.nearbyint`

Rounds x to the nearest integer value, using the current rounding mode.


						
				real nearbyint
				(
				

				  real x
				

				) pure nothrow @nogc @safe;

Unlike the rint functions, nearbyint does not raise the FE_INEXACT exception.

Example

import std.math.traits : isNaN;

writeln(nearbyint(0.4)); // 0
writeln(nearbyint(0.5)); // 0
writeln(nearbyint(0.6)); // 1
writeln(nearbyint(100.0)); // 100

assert(isNaN(nearbyint(real.nan)));
writeln(nearbyint(real.infinity)); // real.infinity
writeln(nearbyint(-real.infinity)); // -real.infinity

Authors

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

License

Boost License 1.0.