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Implement the Math#signum method

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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Johannes Schindelin 2013-11-02 00:23:42 -05:00
parent f8028c9864
commit 6a7c03aef9
1 changed files with 8 additions and 0 deletions
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8
classpath/java/lang/Math.java
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@ -75,6 +75,14 @@ public final class Math {
return (int) Math.floor(v + 0.5); return (int) Math.floor(v + 0.5);
} }
public static double signum(double d) {
return d > 0 ? +1.0 : d < 0 ? -1.0 : 0;
}
public static float signum(float f) {
return f > 0 ? +1.0f : f < 0 ? -1.0f : 0;
}
public static double random() { public static double random() {
return random.nextDouble(); return random.nextDouble();
} }