Class: MetaNumber

• Inheritance
• Description
• Related information
• Class protocol
  • queries
• Instance protocol
  • coercing & converting

Inheritance:

   Object
   |
   +--Magnitude
      |
      +--ArithmeticValue
         |
         +--Number
            |
            +--MetaNumber
               |
               +--Infinity
               |
               +--NotANumber
               |
               +--SomeNumber

Package:

stx:libbasic

Category:

Magnitude-Numbers

Version:

rev: 1.4 date: 2017/06/21 18:46:19

user: cg

file: MetaNumber.st directory: libbasic

module: stx stc-classLibrary: libbasic

Author:

Claus Gittinger

Description:

Common behavior for metaNumbers (INF, NaN).

Related information:

    Number
    Infinity
    NotANumber
    Float
    ShortFloat
    Fraction
    FixedPoint
    Integer
    Complex
    FloatArray
    DoubleArray

Class protocol:

 isAbstract

Instance protocol:

 asFloat

return a Float with same value as the receiver.
For anything but NaN, +Inf or -Inf, an error is raised here.

 asFraction

 asInstanceOf: aFloatClass fromSelector: selector

common code for asShortFloat, asFloat, ...
Return an instance of aFloatClass with same value as the receiver.
For anything but NaN, +Inf or -Inf, an error is raised here.

 asInteger

 asLargeFloat

 asLongFloat

return a LongFloat with same value as the receiver.
For anything but NaN, +Inf or -Inf, an error is raised here.

 asQDouble

return a QDouble with same value as the receiver.
For anything but NaN, +Inf or -Inf, an error is raised here.

usage example(s):

Infinity NaN asFloat Infinity NaN asQDouble Infinity positive asFloat Infinity positive asQDouble Infinity negative asFloat Infinity negative asQDouble

 asShortFloat

return a Float with same value as the receiver.
For anything but NaN, +Inf or -Inf, an error is raised here.

 coerce: aNumber

convert the argument aNumber into an instance of the receiver's class and return it.

 generality

NaN, INF etc. are more general than scalars, but not more general than
vectors (e.g. Points)