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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Directives►  ◄Contents►  ◄Index►
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These directives generate error messages at run time and are typically
used for error checking within macro calls and for debugging.
 
Mnemonic       Generates error:
.ERR           If expression evaluates to nonzero
.ERR1          On pass 1
.ERR2          On pass 2
.ERRE          If expression is false
.ERRB          If expression is blank
.ERRNB         If expression is not blank
.ERRDEF        If expression is defined
.ERRNDEF       If expression is not defined
.ERRDIF[I]     If arguments are different
.ERRIDN[I]     If arguments are identical
                                    -♦-