On Fri, 07 May 1999 13:46:56 -0400, Phil Clute <pcl### [at] tiacnet> wrote:
>I have to admit my experience with C programming is extremely
>limited. I guess I am confused as to what a "macro" is then.
>I assumed that constants were macros. What makes #define a 
>macro and #declare not a macro? They seem to serve the same
>purpose.

C's #define lets you do
  #define FOO(x,y,z) (x*32+y*z)

which you can then use like a function:

  printf( "%d", FOO(1,2,3) );

whereas #declare creates an actual instance of the specified
object and puts it in a "variable."  #declare is a lot like the
BASIC "Let" statement.

#macro is pretty much the same as #define, but with a little
different syntax.

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