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The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
DEFtype Statement
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DEFINT letterrange [,letterrange]...
DEFLNG letterrange [,letterrange]...
DEFSNG letterrange [,letterrange]...
DEFDBL letterrange [,letterrange]...
DEFCUR letterrange [,letterrange]...
DEFSTR letterrange [,letterrange]...
■ letterrange A single letter or a range of letters (such as
A-M). Names beginning with letters in letterrange
have the data type specified by the last three
letters of the statement: integer (INT), long
integer (LNG), single precision (SNG), double
precision (DBL), currency (CUR), or string (STR).