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Re: Questions about a constant array reference in the C++ front end

From: Stefan Strasser <sstrasser at systemhaus-gruppe dot de>
To: Kazu Hirata <kazu at cs dot umass dot edu>
Cc: gcc at gcc dot gnu dot org, nathan at codesourcery dot com
Date: Sun, 08 May 2005 14:51:23 +0200
Subject: Re: Questions about a constant array reference in the C++ front end
References: <20050508.001134.133988191.kazu@cs.umass.edu>

Kazu Hirata schrieb:

I am trying to fold array[7] into 2.  It turns out that if T is an
ARRAY_REF,
TREE_READONLY (TREE_OPERAND (T, 0))

is 0. Why?

I don't know anything about fold but in general a c++ array in the frontend is cv-qualified, not its elements.

Another question.  How is a RANGE_EXPR used in a C++'s array
constructor?  The CONSTRUCTOR section of tree.def says

I created an array with more than one thousand elements.  I still did
not see a RANGE_EXPR in the array's CONSTRUCTOR.  How do I get a
RANGE_EXPR in a CONSTRUCTOR?

I have been processing large source codes including STL, boost and custom code including function bodies and I have never seen a RANGE_EXPR. I suppose it's only used at later stages or only in other language's frontends.

Regards,

--
Stefan Strasser

Follow-Ups:
- Re: Questions about a constant array reference in the C++ front end
  - From: Nathan Sidwell

References:
- Questions about a constant array reference in the C++ front end
  - From: Kazu Hirata

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