EDIT2NUM string,number
Convert string in a number (type integer, packed or float).
$DATAERR is the Hilmas variable to verify if all is correct; it is a single character and can be:
' ' - (space) : no error- 'O' - Overflow error : input string is a valid number but is too high (or low)
- 'C' - Character error : input string is an invalid number
Note: conversion into float is done recalling Hilmas macro EDIT2FLO, that can be also directly recalled by the user.