http://d.puremagic.com/issues/show_bug.cgi?id=3512

           Summary: dchar iteration over string in CTFE fails
           Product: D
           Version: 2.036
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: wbaxter@gmail.com


--- Comment #0 from Bill Baxter <wbaxter@gmail.com> 2009-11-15 03:17:22 PST ---
Code:
    string s = "ohai";
    foreach (int i, dchar c; s)
    {}


Error:
Error: cannot evaluate _aApplycd2(s,int delegate(ref int __applyArg0, ref dchar
__applyArg1)
{
dchar c2 = __applyArg1;
int i = __applyArg0;
if (cast(uint)c == cast(uint)c2)
__result = i;
return 2;
return 0;
}
) at compile time


foreach(dchar c; s)  also fails similarly.

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Jacob Carlborg <doob@me.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |doob@me.com


--- Comment #1 from Jacob Carlborg <doob@me.com> 2010-01-10 04:14:19 PST ---
This does work for me using dmd 2.037 and later but not using dmd 1.055 on Mac OS X.

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David Röthlisberger <david@rothlis.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |david@rothlis.net


--- Comment #2 from David Röthlisberger <david@rothlis.net> 2010-11-11 11:29:47 PST ---
I'm seeing a similar error. dmd 2.050 on OS X.

Code:
    import std.string;
    void main()
    {
      mixin("int " ~ tolower("A") ~ ";");
    }

Error:

/Users/drothlis/dmd2/osx/bin/../../src/phobos/std/string.d(792): Error:
_aApplycd2 cannot be interpreted at compile time, because it has no available
source code
minimal.d(5): Error: cannot evaluate tolower("A") at compile time

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--- Comment #3 from David Röthlisberger <david@rothlis.net> 2010-11-11 11:33:52 PST ---
(In reply to comment #2)
Whereas the original code posted by Bill Baxter compiles successfully.

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--- Comment #4 from David Röthlisberger <david@rothlis.net> 2010-11-11 11:39:12 PST ---
(In reply to comment #3)
Please ignore comment #3 :)

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Johann MacDonagh <johann.macdonagh@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |johann.macdonagh@gmail.com


--- Comment #5 from Johann MacDonagh <johann.macdonagh@gmail.com> 2011-07-09 06:32:18 PDT ---
This still fails, and will most likely be fixed by issue 6268.

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Don <clugdbug@yahoo.com.au> changed:

           What    |Removed                     |Added
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                 CC|                            |cbkbbejeap@mailinator.com


--- Comment #6 from Don <clugdbug@yahoo.com.au> 2011-07-22 04:30:24 PDT ---
*** Issue 6268 has been marked as a duplicate of this issue. ***

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Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla@digitalmars.com
         Resolution|                            |FIXED


--- Comment #7 from Walter Bright <bugzilla@digitalmars.com> 2011-08-03 17:14:29 PDT ---
https://github.com/D-Programming-Language/dmd/commit/9318dc44c3e9aa75907966b9fd122c0cc6700891

https://github.com/D-Programming-Language/dmd/commit/571661646ca420aa4c3fb348e86e35ed8faae624

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