CDBL
Converts numeric or string expression to Double precision floating point
Syntax:
Usage:
result = Cdbl( numeric expression )
result = Cdbl( string expression )
result = Cdbl( user defined type )
result = Cdbl( string expression )
result = Cdbl( user defined type )
Parameters:
expression
a numeric, string, or pointer expression to cast to a Double value
datatype
any numeric, string, or pointer data type
typename
a user defined type
Return Value:
A Double precision value.
Description:
The CDbl function returns a 64-bit Double value. The function does not check for an overflow, so be sure not to pass a value outside the representable range of the Double data type. The name can be explained as 'Convert to DouBLe'.
If the argument to CDbl is a string expression, it is first converted to numeric by using Val.
If the argument to CDbl is a string expression, it is first converted to numeric by using Val.
Examples:
' Using the CDBL function to convert a numeric value
'Create an DOUBLE variable
Dim numeric_value As Double
'Convert a numeric value
numeric_value = CDbl(-12345678.123)
'Print the result, should return -12345678.123
Print numeric_value
Sleep
'Create an DOUBLE variable
Dim numeric_value As Double
'Convert a numeric value
numeric_value = CDbl(-12345678.123)
'Print the result, should return -12345678.123
Print numeric_value
Sleep
Differences from QB:
- The string argument was not allowed in QB
See also:
Back to Converting Data Types
