[LLVMdev] How to convert an iterator to an object pointer

[Lang Hames]

Hi Surinder,

You'll need to dereference your iterator to get a pointer:

const BasicBlock *p = *pr;

Cheers,
Lang.

On Mon, Jan 31, 2011 at 3:04 PM, Surinder <surifilms at gmail.com> wrote:

> I have a pointer to a basic block and am iterating thru its
> predecessor blocks.  I want to get a pointer to the predecessor block.
>  How do I do it.  I am using following code and it given compile time
> errors.
>
>  error: cannot convert 'llvm::const_pred_iterator' to 'const
> llvm::BasicBlock*' in initialization
>
>    const BasicBlock *b = PH->getParent();
>    // process all pred block of the current block
>    for (const_pred_iterator pr=pred_begin(b), esc=pred_end(b); pr!=esc;
> ++pr)
>      { const BasicBlock *p = pr;     // ************error line
> ****************
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