• d-bugmail puremagic.com Jan 18 2012
• d-bugmail puremagic.com Jan 19 2012

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7311

           Summary: typeof(x~y) should never be const(T)[]
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: timon.gehr gmx.ch


--- Comment #0 from timon.gehr gmx.ch 2012-01-18 10:56:30 PST ---
typeof(x~y) should never be const(T)[].
const only has a meaning in presence of aliasing. Unique const data is
meaningless.

int[] a;
immutable int[] b;
const int[] c;
static assert(typeof(a~b)==int[]);
static assert(typeof(a~c)==int[]);
static assert(typeof(b~b)==immutable(int)[]);
static assert(typeof(b~c)==immutable(int)[]);
static assert(typeof(c~c)==int[]);

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7311


timon.gehr gmx.ch changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|typeof(x~y) should never be |typeof(x~y) should never be
                   |const(T)[]                  |const(T)[] if T has no
                   |                            |mutable indirections


--- Comment #1 from timon.gehr gmx.ch 2012-01-19 02:31:01 PST ---
(of course, this only applies if T has no mutable indirections)

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