[LLVMdev] question

[Bill? Wendling]

Also sprach Xiaodong Li:
} Thanks Bill. One more question, when I use the DSNode iterator to
} traverse a node's children. The return value of I.getNode() can only
} be 'const DSNode *', I cannot use 'DSNode *' type. So as a result, I
} always get error message like this:
} 
} MemLeakage.cpp:159: invalid conversion from `const DSNode*' to `DSNode*'
} MemLeakage.cpp:159:   initializing argument 1 of `void
}    <unnamed>::GlobalMemLeakage::KillSetInsert(DSNode*, BBsets&)'
} 
} How to use a 'Node *' type iterator? Or is there any other way to traverse
} the DSGraph?
} 
I don't know too much about the DSGraph module, so I didn't respond to
that part of your question :-).

However, a few things which will help. If you don't need to modify the
DSNode *, then use a const_iterator instead and pass everything to
functions which take const DSNode *.

If you do need to modify it, then you may have to rely upon a
const_cast<>() to remove the const from the object. So, you'll have code
which looks like this I think:

    for (DSGraph::iterator B = dsg.begin(), E = dsg.end(); B != E; ++B) {
        DSGraph *D = const_cast<DSGraph *>(*B);

        // code...

        KillSetInsert(D);

        // more code...
    }

that may work...

-- 
|| Bill Wendling           "A computer without a Microsoft operating
|| wendling at isanbard.org    system is like a dog without bricks tied
||                          to its head."   -- Anonymous