www.digitalmars.com         C & C++   DMDScript  

digitalmars.D.bugs - [Issue 8690] New: Can't access a global enum size_t from a pure function

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8690

           Summary: Can't access a global enum size_t from a pure function
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc



int[1] foo;
enum fooLength = 1;
void main() pure {
    auto n1 = fooLength; // OK
    auto n2 = foo.length; // error
}



DMD 2.061alpha shows:

test.d(5): Error: pure function 'D main' cannot access mutable static data
'foo'


But foo.length is a compile-time constant.

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
Sep 18 2012
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8690


yebblies <yebblies gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |yebblies gmail.com
           Platform|x86                         |All
         OS/Version|Windows                     |All



While this probably should work, it's tricky to implement because semantic has
to work out what foo is to find length, and that triggers the purity check
_long_ before it works out length is constant.

Workaround: use typeof(foo).length

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
Jan 16 2013
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8690


yebblies <yebblies gmail.com> changed:

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



*** This issue has been marked as a duplicate of issue 6654 ***

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
Jan 16 2013