• via Digitalmars-d-bugs (24/24) Oct 29 2015 https://issues.dlang.org/show_bug.cgi?id=15256

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

https://issues.dlang.org/show_bug.cgi?id=15256

          Issue ID: 15256
           Summary: Data races with arrays allowed in  safe code
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: accepts-invalid, safe
          Severity: critical
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: dfj1esp02 sneakemail.com

 safe:
shared string s;
void f()  safe
{
    s="s";
}

A slice is stored with two mov instructions, so when the global variable is
modified concurrently, it can end up with pointer from one array and length
from another.

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