[cfe-dev] Getting the value of a IntegerLiteral

[David Blaikie]

Are you using a +asserts build? What kind of crash are you observing?
On Sep 12, 2013 6:42 AM, "Jesper Eskilson" <jesper.eskilson at iar.com> wrote:

>
> Hi,
>
> I'm trying to figure out how I can obtain the value of an IntegerLiteral.
> I tried the following:
>
> const IntegerLiteral *lit = ...;
> if (lit != 0)
> {
>     int64_t n = lit->getValue().getSExtValue()**;
>     // do something with n
> }
>
> This seems to work sometimes, but frequently crashes. I've tried to figure
> out how to use the Evaluate*-functions in the Expr class, but I cannot
> figure out how they should be called.
>
> It's ok if obtaining the value sometimes fails, but it would be nice if it
> didn't crash. :)
>
> --
> *Jesper Eskilson* /Development Engineer/
> IAR Systems AB
> Box 23051, Strandbodgatan 1
> SE-750 23 Uppsala, SWEDEN
> E-mail: jesper.eskilson at iar.com <mailto:jesper.eskilson at iar.**com<jesper.eskilson at iar.com>>
> Website: www.iar.com
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