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  1.  Home
  2. RPG400-L
  3. March 2001

Re: CONST vs. VALUE

  • Subject: Re: CONST vs. VALUE
  • From: Jon.Paris@xxxxxx
  • Date: Tue, 27 Mar 2001 14:22:38 -0400
 

>>  CONST passes the pointer address of the parameter which can be  changed
in the called PGM, but does not change the value for the calling
programme.

This should really be "but _may_ not change the value for the calling
program".  If the parameter matches the prototype exactly no temp is
created and therefore the called program can change the value of the
variable.  To protect against this you can use a PR/PI combination in the
called program.  The compiler will then prevent the value from being
changed.


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