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VAL Convert String to Number pp 70
Syntax: Val (StrVar,NumVar,Code) ;
Type: Integer or Real
Form: Procedure
Purpose: Convert string value of StrVar to a numeric value in NumVar.
Notes: NumVar is type Intger or type Real. Code is any error code.
No errors occurred if Code = 0.
----------------------------------------------------------------------------
Usage:
CONST
StrVar : String [4] = '1234' ; { String value of 1234 }
VAR
Code : Integer ; { Error code }
IntVar : Integer ; { Integer variable }
RealVar : Real ; { Real variable }
BEGIN
Val ('$FFFE',IntVar, Code) ; { '-2' }
Val ('1.123',RealVar,Code) ; { '1.1230000000E+00' }
Val (StrVar, IntVar, Code) ; { '1234' }
END.
See Also:
Str
Write
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