http://d.puremagic.com/issues/show_bug.cgi?id=5065

           Summary: writefln("%f"  of a Tuple prints a result
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: accepts-invalid
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: bearophile_hugs@eml.cc


--- Comment #0 from bearophile_hugs@eml.cc 2010-10-16 16:55:11 PDT ---
import std.stdio: writefln;
import std.typecons: Tuple;
void main() {
    writefln("%f", (Tuple!(int)).init);
}


Compiled with DMD 2.049 prints at runtime:
Prints: Tuple!(int)(0)

But I expect a compile-time error for the mismatch of the format string (and if that's not possible because the D compiler doesn't perform this basic test at compile-time, at run-time).

writefln() probably needs more unittests.

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Andrei Alexandrescu <andrei@metalanguage.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |andrei@metalanguage.com
         AssignedTo|nobody@puremagic.com        |andrei@metalanguage.com


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Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |andrej.mitrovich@gmail.com
           Platform|x86                         |All
         AssignedTo|andrei@erdani.com           |andrej.mitrovich@gmail.com
         OS/Version|Windows                     |All


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-01-18 18:03:24 PST ---
https://github.com/D-Programming-Languahttps://github.com/D-Programming-Language/phobos/pull/1079ge/phobos/pull/1079

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--- Comment #2 from bearophile_hugs@eml.cc 2013-01-19 01:00:31 PST ---
(In reply to comment #1)
> https://github.com/D-Programming-Languahttps://github.com/D-Programming-Language/phobos/pull/1079ge/phobos/pull/1079

The correct link:

https://github.com/D-Programming-Language/phobos/pull/1079

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--- Comment #3 from github-bugzilla@puremagic.com 2013-01-20 04:50:34 PST ---
Commits pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/d6d12ffdc8044937fb206b9c2b2e8965792e2fef
Fixes Issue 5065 - Format specifier must be %s for types which don't implement
toString with a format specifier.

https://github.com/D-Programming-Language/phobos/commit/e9cb971002888fba4e9ca051f9e8ff999dd6923d Merge pull request #1079 from AndrejMitrovic/Fix5065

Issue 5065 - Format specifier must be '%s' for some types

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Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


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--- Comment #4 from github-bugzilla@puremagic.com 2013-02-11 12:20:24 PST ---
Commits pushed to staging at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/d6d12ffdc8044937fb206b9c2b2e8965792e2fef
Fixes Issue 5065 - Format specifier must be %s for types which don't implement
toString with a format specifier.

https://github.com/D-Programming-Language/phobos/commit/e9cb971002888fba4e9ca051f9e8ff999dd6923d Merge pull request #1079 from AndrejMitrovic/Fix5065

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--- Comment #5 from github-bugzilla@puremagic.com 2013-02-11 23:13:23 PST ---
Commits pushed to https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/d6d12ffdc8044937fb206b9c2b2e8965792e2fef
Fixes Issue 5065 - Format specifier must be %s for types which don't implement
toString with a format specifier.

https://github.com/D-Programming-Language/phobos/commit/e9cb971002888fba4e9ca051f9e8ff999dd6923d Merge pull request #1079 from AndrejMitrovic/Fix5065

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--- Comment #6 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-02-12 11:08:52 PST ---
How many notifications are we going to receive for every fixed bug? ..

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