PPWIZARD is a free preprocessor for HTML, REXX, Visual Basic or any text files.
A #undef command allows you to remove a definition so that it can
be redefined without producing the
warning message it normally will generate.
[WhiteSpace]#define Variable
The "Variable" indicates which variable is to be
removed (macro references are first replaced).
No warning is displayed if the symbol did not originally exist.
#define Fred Its value
#undef Fred;
#define Fred Its new value
PPWIZARD Manual

Thursday January 17 2002 at 6:27pm