package it.unimi.dsi.fastutil.floats;
import java.util.Comparator;
public final class FloatComparators {
private FloatComparators() {
}
protected static class NaturalImplicitComparator implements FloatComparator, java.io.Serializable {
private static final long serialVersionUID = 1L;
@Override
public final int compare(final float a, final float b) {
return (Float.compare((a), (b)));
}
@Override
public FloatComparator reversed() {
return OPPOSITE_COMPARATOR;
}
private Object readResolve() {
return NATURAL_COMPARATOR;
}
};
public static final FloatComparator NATURAL_COMPARATOR = new NaturalImplicitComparator();
protected static class OppositeImplicitComparator implements FloatComparator, java.io.Serializable {
private static final long serialVersionUID = 1L;
@Override
public final int compare(final float a, final float b) {
return -(Float.compare((a), (b)));
}
@Override
public FloatComparator reversed() {
return NATURAL_COMPARATOR;
}
private Object readResolve() {
return OPPOSITE_COMPARATOR;
}
};
public static final FloatComparator OPPOSITE_COMPARATOR = new OppositeImplicitComparator();
protected static class OppositeComparator implements FloatComparator, java.io.Serializable {
private static final long serialVersionUID = 1L;
final FloatComparator comparator;
protected OppositeComparator(final FloatComparator c) {
comparator = c;
}
@Override
public final int compare(final float a, final float b) {
return comparator.compare(b, a);
}
@Override
public final FloatComparator reversed() {
return comparator;
}
};
public static FloatComparator oppositeComparator(final FloatComparator c) {
if (c instanceof OppositeComparator)
return ((OppositeComparator) c).comparator;
return new OppositeComparator(c);
}
public static FloatComparator asFloatComparator(final Comparator<? super Float> c) {
if (c == null || c instanceof FloatComparator)
return (FloatComparator) c;
return new FloatComparator() {
@Override
public int compare(float x, float y) {
return c.compare(Float.valueOf(x), Float.valueOf(y));
}
@SuppressWarnings("deprecation")
@Override
public int compare(Float x, Float y) {
return c.compare(x, y);
}
};
}
}