Important Notice
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out of date.
Name, String, and Number Limits
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Maximum Minimum
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Variable-name length 40 characters 1 character
String length 32,767 characters 0 characters
Integers 32,767 -32,768
Long integers 2,147,483,647 -2,147,483,648
Single-precision numbers:
Positive 3.402823E+38 2.802597E-45
Negative -2.802597E-45 -3.402823E+38
Double-precision numbers:
Positive 1.79769313486231D+308 4.940656458412465D-324
Negative -4.940656458412465D-324 -1.79769313486231D+308