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  • Subject: Re: NULL terminated strings
  • From: Jon.Paris@xxxxxxxxxx
  • Date: Tue, 15 Feb 2000 12:50:18 -0500



 >> Where I get confused is the Options(*string) keyword on a procedure.

Normally terminating with a null character (hex zeros) is done prior to passing
a pointer to the resulting string to a C function.  Those nice folks Hans and
Barbara made this simpler by introducing the Option(*String) as a qualifier to a
pointer in a prototype.  When this is specified you have the option of doing the
work yourself and passing the pointer, or if you specify not a pointer but a
variable or expression, the compiler will do the null termination etc. for you.

The complementary function is %Str which will convert a C type string into a
"real" RPG one.


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