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| From | Ben Bacarisse <ben.usenet@bsb.me.uk> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: lvalues from the ternary op |
| Date | 2016-09-26 01:10 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <8737kned1h.fsf@bsb.me.uk> (permalink) |
| References | <c8677aed-7589-4ba4-9aa0-8b20b00c0981@googlegroups.com> |
luser droog <luser.droog@gmail.com> writes: > Just came up with this. Probably foolish nonsense as usual. No, I think it's a reasonable thing to do. C++ thought so too, to the extent of making it easier. But it's not technically "lvalues from the ternary op". It's just lvalues from the * op -- the result of a * expression is always an lvalue. > I was looking over the (obfuscated) code of my 8086 emulator > and my eyes fell upon this statement. > > https://github.com/luser-dr00g/8086/blob/b7bfb134c1146cbe2ac7f1b80dd521e0ddb2349c/a8086.c#L112 > d?y+=*fl&CF:(x+=*fl&CF); > > And I thought: There's a lot of repetition in the two cases. > So what about: > > *(d?&y:&x)+=F(CF); C++ allows you to write (d ? y : x) += F(CF); directly. I'm not sure why C doesn't, but it seems a shame to me that it doesn't. -- Ben.
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lvalues from the ternary op luser droog <luser.droog@gmail.com> - 2016-09-25 16:12 -0700
Re: lvalues from the ternary op "James R. Kuyper" <jameskuyper@verizon.net> - 2016-09-25 19:58 -0400
Re: lvalues from the ternary op Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-26 01:10 +0100
Re: lvalues from the ternary op Tim Rentsch <txr@alumni.caltech.edu> - 2016-09-27 15:01 -0700
Re: lvalues from the ternary op Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-28 00:23 +0100
Re: lvalues from the ternary op BartC <bc@freeuk.com> - 2016-09-28 01:35 +0100
Re: lvalues from the ternary op "James R. Kuyper" <jameskuyper@verizon.net> - 2016-09-28 12:39 -0400
Re: lvalues from the ternary op BartC <bc@freeuk.com> - 2016-09-28 18:23 +0100
Re: lvalues from the ternary op Tim Rentsch <txr@alumni.caltech.edu> - 2016-10-08 15:37 -0700
Re: lvalues from the ternary op supercat@casperkitty.com - 2016-09-25 18:14 -0700
Re: lvalues from the ternary op BartC <bc@freeuk.com> - 2016-09-26 10:51 +0100
Re: lvalues from the ternary op luser droog <luser.droog@gmail.com> - 2016-09-26 12:42 -0700
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