Date: Wed, 29 Jan 2014 22:47:35 +0400 From: Dmitry Marakasov <amdmi3@amdmi3.ru> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: freebsd-current@FreeBSD.org Subject: Re: libm lacks C99 functions -> no c++11 cmath in libstdc++ Message-ID: <20140129184735.GA63095@hades.panopticon> In-Reply-To: <20140129172307.GA88757@troutmask.apl.washington.edu> References: <20140129164136.GA3489@hades.panopticon> <20140129172307.GA88757@troutmask.apl.washington.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
* Steve Kargl (sgk@troutmask.apl.washington.edu) wrote: > > - bad enough by itself, it affects libstdc++ from ports' gcc in such a > > way that it disables C++11 math completely (along with a lot more > > other more widely used math functions) > > > > > > - we may probably implement these by calling less-precise > > erf erfc lgamma tgamma as we do with other functions as we alredy > > do with some others > > This, unfortuantely, has already been done, although it may only > be available in FreeBSD-current. See src/lib/msun/src/imprecise.c. I know, it's available on 10.0 as well. However that's not the case for 9.x, for which it's impossible to build c++11 math using software (even if it doesn't use unimplemented functions), neither with system gcc nor with gcc from ports. -- Dmitry Marakasov . 55B5 0596 FF1E 8D84 5F56 9510 D35A 80DD F9D2 F77D amdmi3@amdmi3.ru ..: jabber: amdmi3@jabber.ru http://www.amdmi3.ru
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20140129184735.GA63095>