dec ( variable -- )
Factor handbook » The language » Dynamic variables » Changing variable values

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Vocabulary
namespaces

Inputs

variable

a variable, by convention a symbol

Outputs
None

Word description
Decrements the value of the variable by 1. A variable value of f is interpreted as being zero.

Side effects
Modifies variable

See also
ref-dec

Definition

USING: kernel ;

IN: namespaces

: dec ( variable -- ) -1 swap +@ ; inline