Help Center›FreeBASIC
DefDblkeyword
Specifies a default data type for a range of variable names
Syntax
DefDbl start_letter[-end_letter ][, ...]
Parameters
| Name | Description | |
|---|---|---|
start_letter | the first letter in the range | |
end_letter | the last letter in the range |
Description
DefDbl specifies that variables and arrays which aren't declared with a data type - or not declared at all - are implicitly declared of type Double if the first letter of their names matches a certain letter or lies within an inclusive range of letters.Remarks
Dialect Differences
- Only available in the -lang qb and -lang fblite dialects.
Differences from QB
- None
See also
Example
This will make
aNum a Double-precision decimal number since it is in the range of a-d:'' Compile with -lang fblite or qb
#lang "fblite"
DefDbl a-d
Dim aNum 'implicit: As Double
Print Len(aNum) ' Prints 8, the number of bytes in a double.
Reference
- Documented in KeyPgDefdbl.html