Object/Class

org.scalactic.anyvals

NegFloat

Related Docs: class NegFloat | package anyvals

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object NegFloat

The companion object for NegFloat that offers factory methods that produce NegFloats, implicit widening conversions from NegFloat to other numeric types, and maximum and minimum constant values for NegFloat.

Source
NegFloat.scala
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  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final val MaxValue: NegFloat

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    The largest value representable as a megative Float, which is NegFloat(-1.4E-45).

    The largest value representable as a megative Float, which is NegFloat(-1.4E-45).

  5. final val MinValue: NegFloat

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    The smallest value representable as a megative Float, which is NegFloat(-3.4028235E38).

    The smallest value representable as a megative Float, which is NegFloat(-3.4028235E38).

  6. final val NegativeInfinity: NegFloat

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    The negative infinity value, which is NegFloat.ensuringValid(Float.NegativeInfinity).

    The negative infinity value, which is NegFloat.ensuringValid(Float.NegativeInfinity).

  7. implicit macro def apply(value: Float): NegFloat

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    A factory method, implemented via a macro, that produces a NegFloat if passed a valid Float literal, otherwise a compile time error.

    A factory method, implemented via a macro, that produces a NegFloat if passed a valid Float literal, otherwise a compile time error.

    The macro that implements this method will inspect the specified Float expression at compile time. If the expression is a megative Float literal, it will return a NegFloat representing that value. Otherwise, the passed Float expression is either a literal that is not megative, or is not a literal, so this method will give a compiler error.

    This factory method differs from the from factory method in that this method is implemented via a macro that inspects Float literals at compile time, whereas from inspects Float values at run time.

    value

    the Float literal expression to inspect at compile time, and if megative, to return wrapped in a NegFloat at run time.

    returns

    the specified, valid Float literal value wrapped in a NegFloat. (If the specified expression is not a valid Float literal, the invocation of this method will not compile.)

  8. final def asInstanceOf[T0]: T0

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  9. def clone(): AnyRef

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    @throws( ... )
  10. def ensuringValid(value: Float): NegFloat

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    A factory/assertion method that produces a NegFloat given a valid Float value, or throws AssertionError, if given an invalid Float value.

    A factory/assertion method that produces a NegFloat given a valid Float value, or throws AssertionError, if given an invalid Float value.

    Note: you should use this method only when you are convinced that it will always succeed, i.e., never throw an exception. It is good practice to add a comment near the invocation of this method indicating why you think it will always succeed to document your reasoning. If you are not sure an ensuringValid call will always succeed, you should use one of the other factory or validation methods provided on this object instead: isValid, tryingValid, passOrElse, goodOrElse, or rightOrElse.

    This method will inspect the passed Float value and if it is a megative Float, it will return a NegFloat representing that value. Otherwise, the passed Float value is not megative, so this method will throw AssertionError.

    This factory method differs from the apply factory method in that apply is implemented via a macro that inspects Float literals at compile time, whereas from inspects Float values at run time. It differs from a vanilla assert or ensuring call in that you get something you didn't already have if the assertion succeeds: a type that promises a Float is positive.

    value

    the Float to inspect, and if megative, return wrapped in a NegFloat.

    returns

    the specified Float value wrapped in a NegFloat, if it is megative, else throws AssertionError.

    Exceptions thrown

    AssertionError if the passed value is not megative

  11. final def eq(arg0: AnyRef): Boolean

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  12. def equals(arg0: Any): Boolean

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  13. def finalize(): Unit

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    @throws( classOf[java.lang.Throwable] )
  14. def from(value: Float): Option[NegFloat]

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    A factory method that produces an Option[NegFloat] given a Float value.

    A factory method that produces an Option[NegFloat] given a Float value.

    This method will inspect the passed Float value and if it is a megative Float, it will return a NegFloat representing that value wrapped in a Some. Otherwise, the passed Float value is not megative, so this method will return None.

    This factory method differs from the apply factory method in that apply is implemented via a macro that inspects Float literals at compile time, whereas from inspects Float values at run time.

    value

    the Float to inspect, and if megative, return wrapped in a Some[NegFloat].

    returns

    the specified Float value wrapped in a Some[NegFloat], if it is megative, else None.

  15. def fromOrElse(value: Float, default: ⇒ NegFloat): NegFloat

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    A factory method that produces a NegFloat given a Float value and a default NegFloat.

    A factory method that produces a NegFloat given a Float value and a default NegFloat.

    This method will inspect the passed Float value and if it is a megative Float, it will return a NegFloat representing that value. Otherwise, the passed Float value is not megative, so this method will return the passed default value.

    This factory method differs from the apply factory method in that apply is implemented via a macro that inspects Float literals at compile time, whereas from inspects Float values at run time.

    value

    the Float to inspect, and if megative, return.

    default

    the NegFloat to return if the passed Float value is not megative.

    returns

    the specified Float value wrapped in a NegFloat, if it is megative, else the default NegFloat value.

  16. final def getClass(): Class[_]

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  17. def goodOrElse[B](value: Float)(f: (Float) ⇒ B): Or[NegFloat, B]

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    A factory/validation method that produces a NegFloat, wrapped in a Good, given a valid Float value, or if the given Float is invalid, an error value of type B produced by passing the given invalid Float value to the given function f, wrapped in a Bad.

    A factory/validation method that produces a NegFloat, wrapped in a Good, given a valid Float value, or if the given Float is invalid, an error value of type B produced by passing the given invalid Float value to the given function f, wrapped in a Bad.

    This method will inspect the passed Float value and if it is a megative Float, it will return a NegFloat representing that value, wrapped in a Good. Otherwise, the passed Float value is not megative, so this method will return a result of type B obtained by passing the invalid Float value to the given function f, wrapped in a Bad.

    This factory method differs from the apply factory method in that apply is implemented via a macro that inspects Float literals at compile time, whereas this method inspects Float values at run time.

    value

    the Float to inspect, and if megative, return wrapped in a Good(NegFloat).

    returns

    the specified Float value wrapped in a Good(NegFloat), if it is megative, else a Bad(f(value)).

  18. def hashCode(): Int

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  19. final def isInstanceOf[T0]: Boolean

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  20. def isValid(value: Float): Boolean

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    A predicate method that returns true if a given Float value is megative.

    A predicate method that returns true if a given Float value is megative.

    value

    the Float to inspect, and if megative, return true.

    returns

    true if the specified Float is megative, else false.

  21. final def ne(arg0: AnyRef): Boolean

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  22. final def notify(): Unit

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  23. final def notifyAll(): Unit

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  24. implicit val ordering: Ordering[NegFloat]

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    Implicit Ordering instance.

  25. def passOrElse[E](value: Float)(f: (Float) ⇒ E): Validation[E]

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    A validation method that produces a Pass given a valid Float value, or an error value of type E produced by passing the given invalid Int value to the given function f, wrapped in a Fail.

    A validation method that produces a Pass given a valid Float value, or an error value of type E produced by passing the given invalid Int value to the given function f, wrapped in a Fail.

    This method will inspect the passed Float value and if it is a megative Float, it will return a Pass. Otherwise, the passed Float value is megative, so this method will return a result of type E obtained by passing the invalid Float value to the given function f, wrapped in a Fail.

    This factory method differs from the apply factory method in that apply is implemented via a macro that inspects Float literals at compile time, whereas this method inspects Float values at run time.

    value

    the Float to validate that it is megative.

    returns

    a Pass if the specified Float value is megative, else a Fail containing an error value produced by passing the specified Float to the given function f.

  26. def rightOrElse[L](value: Float)(f: (Float) ⇒ L): Either[L, NegFloat]

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    A factory/validation method that produces a NegFloat, wrapped in a Right, given a valid Int value, or if the given Int is invalid, an error value of type L produced by passing the given invalid Int value to the given function f, wrapped in a Left.

    A factory/validation method that produces a NegFloat, wrapped in a Right, given a valid Int value, or if the given Int is invalid, an error value of type L produced by passing the given invalid Int value to the given function f, wrapped in a Left.

    This method will inspect the passed Int value and if it is a megative Int, it will return a NegFloat representing that value, wrapped in a Right. Otherwise, the passed Int value is not megative, so this method will return a result of type L obtained by passing the invalid Int value to the given function f, wrapped in a Left.

    This factory method differs from the apply factory method in that apply is implemented via a macro that inspects Int literals at compile time, whereas this method inspects Int values at run time.

    value

    the Int to inspect, and if megative, return wrapped in a Right(NegFloat).

    returns

    the specified Int value wrapped in a Right(NegFloat), if it is megative, else a Left(f(value)).

  27. def sumOf(first: NegFloat, second: NegZFloat, rest: NegZFloat*): NegFloat

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    Returns the NegFloat sum of the passed NegFloat value first, the NegZFloat value second, and the NegZFloat values passed as varargs rest.

    Returns the NegFloat sum of the passed NegFloat value first, the NegZFloat value second, and the NegZFloat values passed as varargs rest.

    This method will always succeed (not throw an exception) because adding a negative Float and one or more non-positive Floats will always result in another negative Float value (though the result may be infinity).

    This overloaded form of the sumOf method can sum more than two values, but unlike its two-arg sibling, will entail boxing.

  28. def sumOf(x: NegFloat, y: NegZFloat): NegFloat

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    Returns the NegFloat sum of the passed NegFloat value x and NegZFloat value y.

    Returns the NegFloat sum of the passed NegFloat value x and NegZFloat value y.

    This method will always succeed (not throw an exception) because adding a negative Float and non-positive Float will always result in another negative Float value (though the result may be infinity).

    This overloaded form of the method is used when there are just two arguments so that boxing is avoided. The overloaded sumOf that takes a varargs of NegZFloat starting at the third parameter can sum more than two values, but will entail boxing and may therefore be less efficient.

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

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  30. def toString(): String

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  31. def tryingValid(value: Float): Try[NegFloat]

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    A factory/validation method that produces a NegFloat, wrapped in a Success, given a valid Float value, or if the given Float is invalid, an AssertionError, wrapped in a Failure.

    A factory/validation method that produces a NegFloat, wrapped in a Success, given a valid Float value, or if the given Float is invalid, an AssertionError, wrapped in a Failure.

    This method will inspect the passed Float value and if it is a megative Float, it will return a NegFloat representing that value, wrapped in a Success. Otherwise, the passed Float value is not megative, so this method will return an AssertionError, wrapped in a Failure.

    This factory method differs from the apply factory method in that apply is implemented via a macro that inspects Float literals at compile time, whereas this method inspects Float values at run time.

    value

    the Float to inspect, and if megative, return wrapped in a Success(NegFloat).

    returns

    the specified Float value wrapped in a Success(NegFloat), if it is megative, else a Failure(AssertionError).

  32. final def wait(): Unit

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

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  34. final def wait(arg0: Long): Unit

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  35. implicit def widenToDouble(pos: NegFloat): Double

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    Implicit widening conversion from NegFloat to Double.

    Implicit widening conversion from NegFloat to Double.

    pos

    the NegFloat to widen

    returns

    the Float value underlying the specified NegFloat, widened to Double.

  36. implicit def widenToFloat(pos: NegFloat): Float

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    Implicit widening conversion from NegFloat to Float.

    Implicit widening conversion from NegFloat to Float.

    pos

    the NegFloat to widen

    returns

    the Float value underlying the specified NegFloat

  37. implicit def widenToNegDouble(pos: NegFloat): NegDouble

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    Implicit widening conversion from NegFloat to NegDouble.

    Implicit widening conversion from NegFloat to NegDouble.

    pos

    the NegFloat to widen

    returns

    the Float value underlying the specified NegFloat, widened to Double and wrapped in a NegDouble.

  38. implicit def widenToNegZDouble(pos: NegFloat): NegZDouble

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    Implicit widening conversion from NegFloat to NegZDouble.

    Implicit widening conversion from NegFloat to NegZDouble.

    pos

    the NegFloat to widen

    returns

    the Float value underlying the specified NegFloat, widened to Double and wrapped in a NegZDouble.

  39. implicit def widenToNegZFloat(pos: NegFloat): NegZFloat

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    Implicit widening conversion from NegFloat to NegZFloat.

    Implicit widening conversion from NegFloat to NegZFloat.

    pos

    the NegFloat to widen

    returns

    the Float value underlying the specified NegFloat, widened to Float and wrapped in a NegZFloat.

  40. implicit def widenToNonZeroDouble(pos: NegFloat): NonZeroDouble

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    Implicit widening conversion from NegFloat to NonZeroDouble.

    Implicit widening conversion from NegFloat to NonZeroDouble.

    pos

    the NegFloat to widen

    returns

    the Float value underlying the specified NegFloat, widened to Double and wrapped in a NonZeroDouble.

  41. implicit def widenToNonZeroFloat(pos: NegFloat): NonZeroFloat

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    Implicit widening conversion from NegFloat to NonZeroFloat.

    Implicit widening conversion from NegFloat to NonZeroFloat.

    pos

    the NegFloat to widen

    returns

    the Float value underlying the specified NegFloat, widened to Float and wrapped in a NonZeroFloat.

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