Modern Finance DecimalInvalid

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DecimalInvalid

Returns the Invalid Decimal, which overflow and division by zero also produce.

Syntax

DecimalInvalid( )

Examples

#import "std/money"
using money

'' The one representation that is not a number -- scale 255, which no
'' value can have.  Overflow, division by zero and a conversion that will
'' not fit all produce it
print DecimalInvalid( ).ToString( )   '' Invalid
print DecimalInvalid( ).IsValid( )    '' false

print ( DecimalMaxValue( ) + DecimalOne( ) ).IsValid( )   '' false
print ( DecimalOne( ) / DecimalZero( ) ).IsValid( )       '' false

'' It is INFECTIOUS: anything touching it is Invalid too
print ( DecimalInvalid( ) * DecimalOne( ) ).IsValid( )    '' false

'' and INVALID = INVALID IS FALSE, the same rule currency.tiko and
'' std/chrono use.  Test with IsValid( ), never with =
print ( DecimalInvalid( ) = DecimalInvalid( ) )           '' false

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Library: Finance
Category: Finance
Documented under: Nothing Becomes A Keyword