[cfe-dev] CSCommon.h fails to compile (Mac OS X 10.11)

Mon Nov 30 07:17:15 PST 2015

It's a warning that's set to be treated as an error by default (as –Werror=c++11-narrowing).
On Linux I can use –Wno-c++11-narrowing and it gets rid of the error.  If you want it to be a warning instead of an error you can say –Wno-error=c++11-narrowing instead.
--paulr

From: Joshua Gerrard [mailto:joshua.gerrard at roli.com]
Sent: Monday, November 30, 2015 3:17 AM
To: Robinson, Paul; Anton Smirnov via cfe-dev
Subject: Re: [cfe-dev] CSCommon.h fails to compile (Mac OS X 10.11)

(Resync with mailing list)

Thanks!

It comes through as an error rather than a warning though, so we can't simply ignore / disable it.

--
Joshua Gerrard
JUCE Software Developer

ROLI’s award-winning<http://www.telegraph.co.uk/luxury/design/31520/the-seaboard-grand-piano-wins-designs-of-the-year-2014-award.html> Seaboard GRAND, celebrated as the “piano of the future<http://edition.cnn.com/2013/09/27/tech/innovation/hans-zimmer-seaboard-future-piano/>”, is now joined by the Seaboard RISE<https://www.youtube.com/watch?v=fGr7VbDiRNw>, “every bit as slimline and attractive as its bigger brother<http://www.soundonsound.com/news?NewsID=18726>”. The press is hailing the Seaboard RISE as “innovative<http://www.wired.co.uk/news/archive/2015-09/10/seaboard-rise-digital-keyboard-launch-uk-price>”, “expressive<http://createdigitalmusic.com/2015/09/new-roli-instrument-wants-make-expressive-control-mainstream/>”, “accessible<http://createdigitalmusic.com/2015/09/new-roli-instrument-wants-make-expressive-control-mainstream/>”, and “a keyboard controller that does to piano keys what 3D touch does to the iPhone<http://www.slashgear.com/roli-seaboard-rise-is-like-3d-touch-for-musicians-11404216/>”. Now available for preorder at www.roli.com<http://www.roli.com/>.

On 28 November 2015 at 17:54, Robinson, Paul <Paul_Robinson at playstation.sony.com<mailto:Paul_Robinson at playstation.sony.com>> wrote:
The diagnostic probably said [-Wc++11-narrowing] so try –Wno-c++11-narrowing.  Better to get the header fixed, though:

|     kSecCSConsiderExpiration = 1 << 31, /* consider expired certificates invalid */
A bug in the header, which you could report to Apple.  That should be '1u << 31' given that the base type is uint32_t.
--paulr

From: cfe-dev [mailto:cfe-dev-bounces at lists.llvm.org<mailto:cfe-dev-bounces at lists.llvm.org>] On Behalf Of Joshua Gerrard via cfe-dev
Sent: Thursday, November 26, 2015 6:02 AM
To: Anton Smirnov via cfe-dev
Subject: [cfe-dev] CSCommon.h fails to compile (Mac OS X 10.11)

Hello folks,

I'm working on a project that uses clang and it seems that I cannot compile the CSCommon.h header inside the Apple SDKs. The error I get is:

enumerator value evaluates to -2147483648<tel:2147483648>, which cannot be narrowed to type uint32_t (aka unsingned int)

Around the source code:
typedef CF_OPTIONS(uint32_t, SecCSFlags) {
    kSecCSDefaultFlags = 0, /* no particular flags (default behavior) */

    kSecCSConsiderExpiration = 1 << 31, /* consider expired certificates invalid */
    kSecCSEnforceRevocationChecks = 1 << 30, /* force revocation checks regardless of preference settings */
    kSecCSNoNetworkAccess = 1 << 29,            /* do not use the network, cancels "kSecCSEnforceRevocationChecks"  */
    kSecCSReportProgress = 1 << 28, /* make progress report call-backs when configured */
    kSecCSCheckTrustedAnchors = 1 << 27, /* build certificate chain to system trust anchors, not to any self-signed certificate */
};

clang revision 253884

Previously, we just hacked around this with:

#undef CF_OPTIONS
#define CF_OPTIONS(_type, _name) _type _name; enum

But alas some of our users are still reporting the error.

Has anyone encountered this before? Is there a specific LangOpt I need to set?

Many thanks in advance.

--

Joshua Gerrard
JUCE Software Developer

ROLI’s award-winning<http://www.telegraph.co.uk/luxury/design/31520/the-seaboard-grand-piano-wins-designs-of-the-year-2014-award.html> Seaboard GRAND, celebrated as the “piano of the future<http://edition.cnn.com/2013/09/27/tech/innovation/hans-zimmer-seaboard-future-piano/>”, is now joined by the Seaboard RISE<https://www.youtube.com/watch?v=fGr7VbDiRNw>, “every bit as slimline and attractive as its bigger brother<http://www.soundonsound.com/news?NewsID=18726>”. The press is hailing the Seaboard RISE as “innovative<http://www.wired.co.uk/news/archive/2015-09/10/seaboard-rise-digital-keyboard-launch-uk-price>”, “expressive<http://createdigitalmusic.com/2015/09/new-roli-instrument-wants-make-expressive-control-mainstream/>”, “accessible<http://createdigitalmusic.com/2015/09/new-roli-instrument-wants-make-expressive-control-mainstream/>”, and “a keyboard controller that does to piano keys what 3D touch does to the iPhone<http://www.slashgear.com/roli-seaboard-rise-is-like-3d-touch-for-musicians-11404216/>”. Now available for preorder at www.roli.com<http://www.roli.com/>.

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