trait FloatIsFractional extends FloatIsConflicted with Fractional[Float]
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- Fractional
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- Numeric
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- Equiv
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Type Members
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class
FractionalOps extends Ops
- Definition Classes
- Fractional
-
class
Ops extends AnyRef
- Definition Classes
- Numeric
Abstract Value Members
-
abstract
def
compare(x: Float, y: Float): Int
Returns an integer whose sign communicates how x compares to y.
Returns an integer whose sign communicates how x compares to y.
The result sign has the following meaning:
- negative if x < y
- positive if x > y
- zero otherwise (if x == y)
- Definition Classes
- Ordering → Comparator
Concrete Value Members
-
def
abs(x: Float): Float
- Definition Classes
- FloatIsConflicted → Numeric
-
def
div(x: Float, y: Float): Float
- Definition Classes
- FloatIsFractional → Fractional
-
def
equiv(x: Float, y: Float): Boolean
Return true if
x==yin the ordering.Return true if
x==yin the ordering.- Definition Classes
- Ordering → PartialOrdering → Equiv
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def
fromInt(x: Int): Float
- Definition Classes
- FloatIsConflicted → Numeric
-
def
gt(x: Float, y: Float): Boolean
Return true if
x>yin the ordering.Return true if
x>yin the ordering.- Definition Classes
- Ordering → PartialOrdering
-
def
gteq(x: Float, y: Float): Boolean
Return true if
x>=yin the ordering.Return true if
x>=yin the ordering.- Definition Classes
- Ordering → PartialOrdering
-
def
lt(x: Float, y: Float): Boolean
Return true if
x<yin the ordering.Return true if
x<yin the ordering.- Definition Classes
- Ordering → PartialOrdering
-
def
lteq(x: Float, y: Float): Boolean
Return true if
x<=yin the ordering.Return true if
x<=yin the ordering.- Definition Classes
- Ordering → PartialOrdering
-
def
max(x: Float, y: Float): Float
Return
xifx>=y, otherwisey.Return
xifx>=y, otherwisey.- Definition Classes
- Ordering
-
def
min(x: Float, y: Float): Float
Return
xifx<=y, otherwisey.Return
xifx<=y, otherwisey.- Definition Classes
- Ordering
-
def
minus(x: Float, y: Float): Float
- Definition Classes
- FloatIsConflicted → Numeric
-
implicit
def
mkNumericOps(lhs: Float): FractionalOps
- Definition Classes
- Fractional → Numeric
-
implicit
def
mkOrderingOps(lhs: Float): FloatIsFractional.Ops
This implicit method augments
Twith the comparison operators defined inscala.math.Ordering.Ops.This implicit method augments
Twith the comparison operators defined inscala.math.Ordering.Ops.- Definition Classes
- Ordering
-
def
negate(x: Float): Float
- Definition Classes
- FloatIsConflicted → Numeric
-
def
on[U](f: (U) ⇒ Float): Ordering[U]
Given f, a function from U into T, creates an Ordering[U] whose compare function is equivalent to:
Given f, a function from U into T, creates an Ordering[U] whose compare function is equivalent to:
def compare(x:U, y:U) = Ordering[T].compare(f(x), f(y))- Definition Classes
- Ordering
-
def
one: Float
- Definition Classes
- Numeric
-
def
plus(x: Float, y: Float): Float
- Definition Classes
- FloatIsConflicted → Numeric
-
def
reverse: Ordering[Float]
Return the opposite ordering of this one.
Return the opposite ordering of this one.
- Definition Classes
- Ordering → PartialOrdering
-
def
reversed(): Comparator[Float]
- Definition Classes
- Comparator
-
def
signum(x: Float): Int
- Definition Classes
- Numeric
-
def
thenComparing[U <: Comparable[_ >: U]](arg0: java.util.function.Function[_ >: Float, _ <: U]): Comparator[Float]
- Definition Classes
- Comparator
-
def
thenComparing[U](arg0: java.util.function.Function[_ >: Float, _ <: U], arg1: Comparator[_ >: U]): Comparator[Float]
- Definition Classes
- Comparator
-
def
thenComparing(arg0: Comparator[_ >: Float]): Comparator[Float]
- Definition Classes
- Comparator
-
def
thenComparingDouble(arg0: ToDoubleFunction[_ >: Float]): Comparator[Float]
- Definition Classes
- Comparator
-
def
thenComparingInt(arg0: ToIntFunction[_ >: Float]): Comparator[Float]
- Definition Classes
- Comparator
-
def
thenComparingLong(arg0: ToLongFunction[_ >: Float]): Comparator[Float]
- Definition Classes
- Comparator
-
def
times(x: Float, y: Float): Float
- Definition Classes
- FloatIsConflicted → Numeric
-
def
toDouble(x: Float): Double
- Definition Classes
- FloatIsConflicted → Numeric
-
def
toFloat(x: Float): Float
- Definition Classes
- FloatIsConflicted → Numeric
-
def
toInt(x: Float): Int
- Definition Classes
- FloatIsConflicted → Numeric
-
def
toLong(x: Float): Long
- Definition Classes
- FloatIsConflicted → Numeric
-
def
tryCompare(x: Float, y: Float): Some[Int]
Returns whether a comparison between
xandyis defined, and if so the result ofcompare(x, y).Returns whether a comparison between
xandyis defined, and if so the result ofcompare(x, y).- Definition Classes
- Ordering → PartialOrdering
-
def
zero: Float
- Definition Classes
- Numeric
This is the documentation for the Scala standard library.
Package structure
The scala package contains core types like
Int,Float,ArrayorOptionwhich are accessible in all Scala compilation units without explicit qualification or imports.Notable packages include:
scala.collectionand its sub-packages contain Scala's collections frameworkscala.collection.immutable- Immutable, sequential data-structures such asVector,List,Range,HashMaporHashSetscala.collection.mutable- Mutable, sequential data-structures such asArrayBuffer,StringBuilder,HashMaporHashSetscala.collection.concurrent- Mutable, concurrent data-structures such asTrieMapscala.collection.parallel.immutable- Immutable, parallel data-structures such asParVector,ParRange,ParHashMaporParHashSetscala.collection.parallel.mutable- Mutable, parallel data-structures such asParArray,ParHashMap,ParTrieMaporParHashSetscala.concurrent- Primitives for concurrent programming such asFuturesandPromisesscala.io- Input and output operationsscala.math- Basic math functions and additional numeric types likeBigIntandBigDecimalscala.sys- Interaction with other processes and the operating systemscala.util.matching- Regular expressionsOther packages exist. See the complete list on the right.
Additional parts of the standard library are shipped as separate libraries. These include:
scala.reflect- Scala's reflection API (scala-reflect.jar)scala.xml- XML parsing, manipulation, and serialization (scala-xml.jar)scala.swing- A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar)scala.util.parsing- Parser combinators (scala-parser-combinators.jar)Automatic imports
Identifiers in the scala package and the
scala.Predefobject are always in scope by default.Some of these identifiers are type aliases provided as shortcuts to commonly used classes. For example,
Listis an alias forscala.collection.immutable.List.Other aliases refer to classes provided by the underlying platform. For example, on the JVM,
Stringis an alias forjava.lang.String.