+@ ( n variable -- )

Vocabulary

namespaces

Inputs

n	a number
variable	a variable, by convention a symbol

Outputs

None

Word description

Adds n to the value of the variable. A variable value of f is interpreted as being zero.

Side effects

Modifies variable

Examples

USING: namespaces prettyprint ; IN: scratchpad SYMBOL: foo 1 foo +@ 10 foo +@ foo get .
11

Definition

USING: kernel math ;

IN: namespaces

: +@ ( n variable -- ) [ 0 or + ] change ; inline