[antlr-interest] segmentation fault with AST

[Ric Klaren]

Hi,

On Sat, May 17, 2003 at 12:55:14PM -0000, DrXenos wrote:
> I hope someone can tell me what I am doing wrong.  My antlr
> parser works fine unless I set the "buildAST=true" option.  With this
> option on, it will segmentation fault on a call to
> astFactory->create(LT(1)).

Did you set the astFactory ?

E.g. as in the exprAST example in examples/cpp/exprAST:

ASTFactory my_factory;
ExprLexer lexer(cin);
ExprParser parser(lexer);

parser.initializeASTFactory(my_factory);
parser.setASTFactory(&my_factory);

parser.expr();

> I have built and tried it using mingw (gcc 3.2) and djgpp (gcc 3.2.2).
>  I don't know if I just built it wrong, or am not including something
> in the grammer file that I need to.  I'm using Windows so I can't run
> the configure script, so I don't know if I am building antlr wrong
> (everything but this seems to work fine).

Building the lib should not be a problem manually. There's nothing fancy
needed actually. Gcc 3.2.2 I have not tried myself but with 3.2.3 it works
(and with 3.2.1).

Cheers,

Ric
--
-----+++++*****************************************************+++++++++-------
    ---- Ric Klaren ----- j.klaren at utwente.nl ----- +31 53 4893722  ----
-----+++++*****************************************************+++++++++-------
  "I don't have anything against Java - it's the best damn implementation
              of UCSD Pascal ever released..." --- Larry Smith


 

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