• via Digitalmars-d-bugs (28/28) Jul 07 2015 https://issues.dlang.org/show_bug.cgi?id=14783

via Digitalmars-d-bugs <digitalmars-d-bugs puremagic.com> writes:

https://issues.dlang.org/show_bug.cgi?id=14783

          Issue ID: 14783
           Summary: Overlapping Arrays with Binary Operations on Itself
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: john.michael.hall gmail.com

The code below will not compile (on DMD 2.067.1) due to an overlapping array
error. 

void main()
{
    int[] x = [0, 1, 2];
    x[] *= x[];
}

Neither will it compile with x[] += x[];. 

Normally an overlapping error is when you try to do something like
x[1..$] *= x[0..$-1];
However, in this case, there is exact matching. The compiler should be able to
detect when it is a case like this and handle it appropriately.

Original discussion here:
http://forum.dlang.org/thread/xplooifwemzdtyigcnky forum.dlang.org

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