What is CDbl Function :
Returns an expression that has been converted to a Variant of subtype Double.
Use the CDbl function to provide internationally aware conversions from any other data type to a Double subtype. For example, different decimal separators and thousands separators are properly recognized depending on the locale setting of your system.
This example uses the CDbl function to convert an expression to a Double.
Returns an expression that has been converted to a Variant of subtype Double.
CDbl(expression)The expression argument is any valid expression.
Remarks
In general, you can document your code using the subtype conversion functions to show that the result of some operation should be expressed as a particular data type rather than the default data type. For example, use CDbl or CSng to force double-precision or single-precision arithmetic in cases where currency or integer arithmetic normally would occur.Use the CDbl function to provide internationally aware conversions from any other data type to a Double subtype. For example, different decimal separators and thousands separators are properly recognized depending on the locale setting of your system.
This example uses the CDbl function to convert an expression to a Double.
Dim MyCurr, MyDouble MyCurr = CCur(234.456784)
' MyCurr is a Currency (234.4567). MyDouble =CDbl(MyCurr * 8.2 * 0.01)
' Convert result to a Double (19.2254576).
Some more relevant posts covering the VBScript functions and other Vbscript used for coding in QTP.:
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