S>NUMBER?  ( addr len -- n fl )

published: 31 January 2022 / updated 23 January 2023

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vocabulary: internals

Evaluates the content of a character string and tries to transform the content into a number.

Leave the value n and -1 if the evaluation is successful

Example:

s" 27"  S>NUMBER?  \ leave 27 -1  on stack 

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