MDEFAULT

The MDEFAULT compiler directive indicates whether a macro parameter is using its default string. The directive uses the following format:

Where:

macroparam

Required. A currently valid {param} label reference for a MACRO definition replacement parameter.

Flags Affected: NONE

Note the following:

1. This operator is only valid when used in a %IF, CIF, %ELSEIF, or CELSEIF directive that exists in the body of a MACRO.

2. To be processed, a directive operator requires an exact syntax format.

3. When the valid syntax is detected, this operator and parameter label reference are replaced in the conditional directive source line with a single numeric zero or one as follows:

 

Value	The replacement string ...
0	was specified when the macro was invoked.
1	was not specified when the macro was invoked. The default string was used.

See Also: Example Code, Compiler Directives