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Function std.math.rounding.floor
Returns the value of x rounded downward to the next integer (toward negative infinity).
real floor
(
real x
) pure nothrow @nogc @trusted;
double floor
(
double x
) pure nothrow @nogc @trusted;
float floor
(
float x
) pure nothrow @nogc @trusted;
Example
import std .math .traits : isNaN;
writeln(floor(+123.456L)); // +123
writeln(floor(-123.456L)); // -124
writeln(floor(+123.0L)); // +123
writeln(floor(-124.0L)); // -124
writeln(floor(-1.234L)); // -2
writeln(floor(-0.123L)); // -1
writeln(floor(0.0L)); // 0
writeln(floor(+0.123L)); // 0
writeln(floor(+1.234L)); // 1
writeln(floor(real .infinity)); // real.infinity
assert(isNaN(floor(real .nan)));
assert(isNaN(floor(real .init)));
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.