[cfe-dev] fix Sema/unused-expr.c failing on r39999

[Chris Lattner]

On Jul 18, 2007, at 3:21 AM, Benoit Boissinot wrote:
> I needed the following patch so that test/Sema/unused-expr.c does not
> fail:

Applied, thanks!  With future patches, please include them as  
attachments to the email.  This one applied fine, but I've had  
trouble with inline attachments in the past.

Thanks again,

-Chris

> --
> void is a valid cast type
>
> Index: Sema/SemaExpr.cpp
> ===================================================================
> --- Sema/SemaExpr.cpp	(revision 39996)
> +++ Sema/SemaExpr.cpp	(working copy)
> @@ -478,8 +478,9 @@
>    Expr *castExpr = static_cast<Expr*>(Op);
>    QualType castType = QualType::getFromOpaquePtr(Ty);
>
> -  // C99 6.5.4p2: both the cast type and expression type need to  
> be scalars.
> -  if (!castType->isScalarType()) {
> +  // C99 6.5.4p2: the cast type needs to be void or scalar and the  
> expression
> +  // type needs to be scalar.
> +  if (!castType->isScalarType() && !castType->isVoidType()) {
>      return Diag(LParenLoc, diag::err_typecheck_cond_expect_scalar,
>                  castType.getAsString(), SourceRange(LParenLoc,  
> RParenLoc));
>    }
> -- 
> :wq
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