digitalmars.D.bugs - [Issue 7872] New: dmd should warn if `printf` is used on D strings
- d-bugmail puremagic.com (20/20) Apr 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
- d-bugmail puremagic.com (16/22) Apr 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
- d-bugmail puremagic.com (7/7) Apr 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
- d-bugmail puremagic.com (14/16) Apr 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
- d-bugmail puremagic.com (7/7) Apr 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
- d-bugmail puremagic.com (9/9) Apr 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
- d-bugmail puremagic.com (10/10) Apr 11 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
- d-bugmail puremagic.com (8/16) Apr 14 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7872
http://d.puremagic.com/issues/show_bug.cgi?id=7872
Summary: dmd should warn if `printf` is used on D strings
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: DMD
AssignedTo: nobody puremagic.com
ReportedBy: jonas lophus.org
--- Comment #0 from Jonas H. <jonas lophus.org> 2012-04-09 08:19:32 PDT ---
string foo = "john";
printf("hello %s\n", foo);
doesn't work because `printf` expects a zero-terminated string.
The compiler should really yield a warning here.
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Apr 09 2012
d-bugmail puremagic.com
http://d.puremagic.com/issues/show_bug.cgi?id=7872
bearophile_hugs eml.cc changed:
What |Removed |Added
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CC| |bearophile_hugs eml.cc
--- Comment #1 from bearophile_hugs eml.cc 2012-04-09 09:36:00 PDT ---
(In reply to comment #0)
string foo = "john";
printf("hello %s\n", foo);
doesn't work because `printf` expects a zero-terminated string.
The compiler should really yield a warning here.
In D string literals are zero-terminated. So this run correctly:
import core.stdc.stdio;
void main() {
string foo = "john";
printf("hello %s\n", foo.ptr);
}
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Apr 09 2012
http://d.puremagic.com/issues/show_bug.cgi?id=7872 --- Comment #2 from Jonas H. <jonas lophus.org> 2012-04-09 11:26:57 PDT --- Yeah but I guess it's a common mistake for someone coming from C/C++ so there should be some guidance anyway. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Apr 09 2012
http://d.puremagic.com/issues/show_bug.cgi?id=7872
Maxim Fomin <maxim maxim-fomin.ru> changed:
What |Removed |Added
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CC| |maxim maxim-fomin.ru
--- Comment #3 from Maxim Fomin <maxim maxim-fomin.ru> 2012-04-09 11:35:19 PDT
---
(In reply to comment #1)
In D string literals are zero-terminated. So this run correctly:
If documentation
(http://www.prowiki.org/wiki4d/wiki.cgi?action=browse&id=DanielKeep/TextInD&oldid=StringsInD)
is not mistaken string literals are zero-terminated in DMD, thus it is
compiler-specific feature.
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Apr 09 2012
http://d.puremagic.com/issues/show_bug.cgi?id=7872 --- Comment #4 from Jonas H. <jonas lophus.org> 2012-04-09 11:40:53 PDT --- For the record, some discussion on this is happening in the forum too. http://forum.dlang.org/thread/ytoebhnapmcixfdtaoqd forum.dlang.org -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Apr 09 2012
http://d.puremagic.com/issues/show_bug.cgi?id=7872
Walter Bright <bugzilla digitalmars.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bugzilla digitalmars.com
Severity|normal |enhancement
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Stewart Gordon <smjg iname.com> changed:
What |Removed |Added
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--- Comment #5 from Stewart Gordon <smjg iname.com> 2012-04-11 16:10:42 PDT ---
DMD should warn if printf is used full stop. :)
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Apr 11 2012
http://d.puremagic.com/issues/show_bug.cgi?id=7872 --- Comment #6 from Maxim Fomin <maxim maxim-fomin.ru> 2012-04-14 22:18:48 PDT --- (In reply to comment #3)(In reply to comment #1)I just found that here (http://dlang.org/interfaceToC.html) is written that they actually are zero-terminated in D. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------In D string literals are zero-terminated. So this run correctly:If documentation (http://www.prowiki.org/wiki4d/wiki.cgi?action=browse&id=DanielKeep/TextInD&oldid=StringsInD) is not mistaken string literals are zero-terminated in DMD, thus it is compiler-specific feature.
Apr 14 2012