Date: Fri, 26 Jun 2009 18:10:57 +0200 From: Alexey Shuvaev <shuvaev@physik.uni-wuerzburg.de> To: Gabor Kovesdan <gabor@FreeBSD.org> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: RFC: Replacing bc/dc to BSDL versions Message-ID: <20090626161057.GA47554@wep4035.physik.uni-wuerzburg.de> In-Reply-To: <4A407CB1.2060107@FreeBSD.org> References: <4A246C4D.6080409@FreeBSD.org> <4A407CB1.2060107@FreeBSD.org>
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On Tue, Jun 23, 2009 at 08:56:49AM +0200, Gabor Kovesdan wrote: > Gabor Kovesdan escribió: >> Hello, >> >> as you might know, I'm working on a BSDL grep. It isn't totally ready >> yet, because there are compatibility issues, which I have to resolve. >> But looking at another BSDL tools, I've found out that OpenBSD has >> BSDL bc and dc utilities. I've thought of replacing them. I think in >> the bc/dc case, such a strict GNU compatibility isn't necessary as in >> the case of grep, so we may replace them in base system. If there's no >> objection to replacing them, I'll post a patch for review. > Thanks for all your input. It took a while because of other priorities > but I've made some tests concerning BSDL bc/dc. I've made a complete > buildworld and tried mergemaster, which worked fine. I've also checked > the GNU regression tests comparing the two versions. There's little > difference. The speed is varying, sometimes GNU is faster, sometimes the > BSDL versions. The accuracy seems to be the same up to 18 digits after > the decimal point. I've also checked the OpenBSD regression tests found > only one case, which didn't work but these tests seem to be specific for > BSDL bc/dc as they don't really work with the GNU version. > > I've made a patch, which doesn't remove GNU bc/dc yet, just detaches > them from the build so that in case of a regression we can easily revert > while the problem is fixed: > http://kovesdan.org/patches/bcdc.diff > Thanks! I'm running the system with BSD bc/dc now. The only small thing I've noticed is: ~> dc -h dc: invalid option -- h usage: dc [-hVx] [-e expression] [file] ~> dc --help usage: dc [-hVx] [-e expression] [file] This seems to come from this line in dc.c: + /* accept and ignore a single dash to be 4.4BSD dc(1) compatible */ + while ((ch = getopt_long(argc, argv, "e:f:Vx", long_options, NULL)) != -1) { Possibly one should just use "e:f:Vhx"? Otherwise looks good, I'm using dc from time to time. Alexey.help
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