OrderingSyntax

without this import

you have to add an implicit parameter for the 'Ordering' and import the parameter in the function to use it's members (<, <=, >, >=)

scala> def isSorted[A](xs: List[A])(implicit ordering: Ordering[A]): Boolean = {
     |   import ordering._
     |   xs match {
     |     case a :: b :: ys => a <= b && isSorted(b :: ys)
     |     case _            => true
     |   }
     | }
isSorted: [A](xs: List[A])(implicit ordering: Ordering[A])Boolean

with this import

only add the context bound for 'Ordering'

scala> import sclib.ops.ordering._
scala> def isSorted2[A: Ordering](xs: List[A]): Boolean = xs match {
     |   case a :: b :: ys => a <= b && isSorted2(b :: ys)
     |   case _            => true
     | }
isSorted2: [A](xs: List[A])(implicit evidence$1: Ordering[A])Boolean

Linear Supertypes

AnyRef, Any

Instance Constructors

new OrderingSyntax(a: A)(implicit arg0: Ordering[A])

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
def <(b: A)(implicit ord: Ordering[A]): Boolean
def <=(b: A)(implicit ord: Ordering[A]): Boolean
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def >(b: A)(implicit ord: Ordering[A]): Boolean
def >=(b: A)(implicit ord: Ordering[A]): Boolean
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package ordering

implicit class OrderingSyntax[A] extends AnyRef

without this import

with this import

Instance Constructors

new OrderingSyntax(a: A)(implicit arg0: Ordering[A])

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

def <(b: A)(implicit ord: Ordering[A]): Boolean

def <=(b: A)(implicit ord: Ordering[A]): Boolean

final def ==(arg0: Any): Boolean

def >(b: A)(implicit ord: Ordering[A]): Boolean

def >=(b: A)(implicit ord: Ordering[A]): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from AnyRef

Inherited from Any

Ungrouped