http://d.puremagic.com/issues/show_bug.cgi?id=5924

           Summary: schwartzSort of Tuple!(char)[]
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: bearophile_hugs@eml.cc


--- Comment #0 from bearophile_hugs@eml.cc 2011-05-03 04:41:04 PDT ---
D2 code:

import std.algorithm, std.typecons;
void main() {
    //Tuple!(int)[] chars; // OK
    Tuple!(char)[] chars; // Error
    schwartzSort!((c){ return c[0]; })(chars);
}


It doesn't compile with DMD 2.052:

...\dmd\src\phobos\std\algorithm.d(5911): Error: template instance
SortedRange!(Zip!(char[],Tuple!(char)[]),myLess) does not match template
declaration SortedRange(Range,alias pred = "a < b") if
(isRandomAccessRange!(Range))
...\dmd\src\phobos\std\algorithm.d(5912): Error:
SortedRange!(Zip!(char[],Tuple!(char)[]),myLess) is used as a type


You can't sort efficiently the items of an Unicode string because in general they don't have the same length. But a dynamic array of Tuple!(char) is composed by items 1 byte long, and generally it's not meant to be a string. So in this case I expect schwartzSort to be able to sort it.


Current workaround:

import std.algorithm, std.typecons;
void main() {
    Tuple!(char)[] chars;
    schwartzSort!((c){ return cast(int)c[0]; })(chars);
}

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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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--- Comment #1 from github-bugzilla@puremagic.com 2013-02-24 16:52:47 PST ---
Commits pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/48c38ddd2c17fc431056e990fd8919c6d97c4d89 Issue 5924 fix

https://github.com/D-Programming-Language/phobos/commit/118d9182a908777d9776fc6aa0d704bced0a8a51 Merge pull request #1169 from andralex/5924

Fix Issue 5924 - schwartzSort of Tuple!(char)[]

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Alex Rønne Petersen <alex@lycus.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |alex@lycus.org
         Resolution|                            |FIXED


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bearophile_hugs@eml.cc changed:

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


--- Comment #2 from bearophile_hugs@eml.cc 2013-02-25 04:51:08 PST ---
Currently reverted:

https://github.com/D-Programming-Language/phobos/commit/a8f180a7c71b902b7fc92dcc31e8be8d5b7a9d1e

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--- Comment #3 from github-bugzilla@puremagic.com 2013-02-25 20:28:37 PST ---
Commits pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/56c47cecbe277b7274931c2d925fb13db2b9302c Issue 5924 fix

https://github.com/D-Programming-Language/phobos/commit/707a60101b41ac54af2f757beec89875fe51ac37 Merge pull request #1172 from andralex/5924

Fixes Issue 5924

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Alex Rønne Petersen <alex@lycus.org> changed:

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


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