Thread overview
[Issue 9874] New: Function call syntax disuniformity in template constraints
Apr 04, 2013
Kenji Hara
Apr 07, 2013
Kenji Hara
April 04, 2013
http://d.puremagic.com/issues/show_bug.cgi?id=9874

           Summary: Function call syntax disuniformity in template
                    constraints
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: rejects-valid
          Severity: minor
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: bearophile_hugs@eml.cc


--- Comment #0 from bearophile_hugs@eml.cc 2013-04-04 05:02:04 PDT ---
It seems inside the template constraints functions must be called with a trailing (), unlike from other functions:


bool foo() {
    return true;
}
void bar1(T)(T) if (foo()) {} // OK
void bar2(T)(T) if (foo)   {} // error
void main() {
    foo;                      // OK
    bar1(0);
    bar2(0);
}



dmd 2.063alpha gives:

temp.d(5): Error: constraint foo is not constant or does not evaluate to a bool

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April 04, 2013
http://d.puremagic.com/issues/show_bug.cgi?id=9874


Kenji Hara <k.hara.pg@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull


--- Comment #1 from Kenji Hara <k.hara.pg@gmail.com> 2013-04-04 06:03:14 PDT ---
https://github.com/D-Programming-Language/dmd/pull/1837

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--- Comment #2 from github-bugzilla@puremagic.com 2013-04-07 05:26:20 PDT ---
Commits pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/a61b4a4ee539d137db69a6d2c7e2557f81e96b5b fix Issue 9874 - Function call syntax disuniformity in template constraints

https://github.com/D-Programming-Language/dmd/commit/1afa14822650f02a608cecda4a5c53cdb219a7a3 Merge pull request #1837 from 9rnsr/fix9874

Issue 9874 - Function call syntax disuniformity in template constraints

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Kenji Hara <k.hara.pg@gmail.com> changed:

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


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