Message-ID: <20200323203403.57fa610d@trisector>
Date: 2020-03-23T17:34:03Z
From: Ivan Krylov
Subject: [R-pkg-devel] OpenMP variable not specified in enclosing 'parallel'
In-Reply-To: <DB8PR10MB3784AA11DE5966920B02A317A4F00@DB8PR10MB3784.EURPRD10.PROD.OUTLOOK.COM>
On Mon, 23 Mar 2020 15:29:20 +0100
Emil Sj?rup <emilsjoerup at live.dk> wrote:
> const int iMaxLag = 20;
> error: ?iMaxLag? not specified in enclosing ?parallel?
> error: ?iMaxLag? is predetermined ?shared? for ?shared?
This looks like a compiler bug to me. g++ seems to forget the rule that
"const" variables are supposed to be shared despite the default(none)
clause.
In a similar situation (g++ being confused about the sharing
status of a hidden temporary variable it had internally created) I had
to remove default(none) and leave a comment explaining that the code
would not compile otherwise.
--
Best regards,
Ivan