4Test Tips - Val Function

Val function gives wrong answer for large values

The Val function returns an INTEGER if the input STRING parameter does not have a decimal point. It returns a REAL number whenever the input STRING has a decimal point. This behavior is independent of the data type that is to receive the returned value. There is no warning message when the input STRING represents a number greater than 32-bits in binary, but all bit values above 32 will be lost if the input does not contain a period.

4Test Solution - Make sure the input STRING parameter to the Val function has a decimal point

    REAL rValue
    if StrPos(".",sInput)==0
        sInput = sInput+"."
    rValue = Val(sInput)

TestMap Extensions Solution - use the TmValBaseN function.

REAL rValue
rValue = TmValBaseN(sInput)