Re: Beginner's questions

[dennison@telepath.com]

In article <FB6yDx.53x.0.-s@inmet.camb.inmet.com>,
  stt@houdini.camb.inmet.com (Tucker Taft) wrote:
> dennison@telepath.com wrote:
>
> : If you won't need to change the contents of the strings, one quick-and-dirty
> : method is the following:
>
> : type String_Ptr is access String;
>                           ^^^ "constant"
>
> If you use "type String_Ptr is access constant String" to
> declare your pointer type, then the language prevents
> erroneous overwriting of the strings, and the compiler
> (if it follows the Ada 95 implementation advice) will
> allocate and initialize the pointed-to strings at link-time, rather than
> run-time, exactly like "C" string literals.

Ohhhhh, nifty! That was effectively an Ada 83 code chunk I posted. I'll have
to remember to use "access constant" next time it comes up.

Does your last sentence only apply for package specs and bodies, not for
subprograms? When I use this trick, its typically in my "main" subprogram.

--
T.E.D.

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