VAL()
Syntax:
val!(<string ptr str>) | val(<string ptr str>) | val%(<string ptr str>)
The VAL() function tries to parse the numeric value in a string pointed by str to the numeric type of the function.
Parsing rules for VAL!()
The VAL!() function will return 0 if:
The argument points to an empty string
The string is longer than 3 characters
The string contains any non-numeric character, including a space
The numeric value exceeds 255
Parsing rules for VAL()
The VAL() function will return 0 if:
The argument points to an empty string
The string is longer than 6 characters
The string contains any non-numeric character, except for the first character which can be a minus sign (-)
The numeric value is less than -32768 or greater than +32767
Parsing rules for VAL%()
The VAL%() function is hardwired to the equivalent function in BASIC ROM, please refer to this page for parsing rules.