digitalmars.D - Why do not have `0o` prefix for octal numbers?
- Hauleth (4/4) Sep 19 2012 Some time ago I've asked on SO why most languages have `0` prefix
- David Nadlinger (5/9) Sep 19 2012 How often do you use octal numbers? The reason is simply to avoid
- monarch_dodra (13/17) Sep 19 2012 AFAIK: It is experimental. "The $(D octal) facility is intended
- Steven Schveighoffer (6/14) Sep 20 2012 That comment is very old. It is no longer experimental.
- monarch_dodra (3/18) Sep 20 2012 Very interesting read. TY.
Some time ago I've asked on SO why most languages have `0` prefix for octal numbers. My opinion is the same as D designers that it cause a lot of bugs, but why octal numbers are avaible only by using `std.conv.octal`?
Sep 19 2012
On Wednesday, 19 September 2012 at 16:02:41 UTC, Hauleth wrote:Some time ago I've asked on SO why most languages have `0` prefix for octal numbers. My opinion is the same as D designers that it cause a lot of bugs, but why octal numbers are avaible only by using `std.conv.octal`?How often do you use octal numbers? The reason is simply to avoid language feature creep where a library solution is perfectly acceptable. David
Sep 19 2012
On Wednesday, 19 September 2012 at 16:02:41 UTC, Hauleth wrote:Some time ago I've asked on SO why most languages have `0` prefix for octal numbers. My opinion is the same as D designers that it cause a lot of bugs, but why octal numbers are avaible only by using `std.conv.octal`?AFAIK: It is experimental. "The $(D octal) facility is intended as an experimental facility to replace _octal literals starting with $(D '0'), which many find confusing." The reason for deprecating "0" prefix was indeed because of bugs. Then it was noticed that a library solution was available, and as a rule of thumb, if the library can do it, it is moved from the language to the library. You'll see a lot of threads talking about "scope", which went the same way (which is now a library feature, not a language feature). IMO, deprecating "0765" was a good move. Personally, I'd rather have had "0o765" instead of "octal!765" (if only for highlighting). But I don't think it is a big deal.
Sep 19 2012
On Wed, 19 Sep 2012 12:15:19 -0400, monarch_dodra <monarchdodra gmail.com> wrote:On Wednesday, 19 September 2012 at 16:02:41 UTC, Hauleth wrote:That comment is very old. It is no longer experimental. If you want an explanation, see here: http://www.drdobbs.com/tools/user-defined-literals-in-the-d-programmi/229401068 -SteveSome time ago I've asked on SO why most languages have `0` prefix for octal numbers. My opinion is the same as D designers that it cause a lot of bugs, but why octal numbers are avaible only by using `std.conv.octal`?AFAIK: It is experimental. "The $(D octal) facility is intended as an experimental facility to replace _octal literals starting with $(D '0'), which many find confusing."
Sep 20 2012
On Thursday, 20 September 2012 at 18:12:50 UTC, Steven Schveighoffer wrote:On Wed, 19 Sep 2012 12:15:19 -0400, monarch_dodra <monarchdodra gmail.com> wrote:Very interesting read. TY.On Wednesday, 19 September 2012 at 16:02:41 UTC, Hauleth wrote:That comment is very old. It is no longer experimental. If you want an explanation, see here: http://www.drdobbs.com/tools/user-defined-literals-in-the-d-programmi/229401068 -SteveSome time ago I've asked on SO why most languages have `0` prefix for octal numbers. My opinion is the same as D designers that it cause a lot of bugs, but why octal numbers are avaible only by using `std.conv.octal`?AFAIK: It is experimental. "The $(D octal) facility is intended as an experimental facility to replace _octal literals starting with $(D '0'), which many find confusing."
Sep 20 2012