http://d.puremagic.com/issues/show_bug.cgi?id=5779

           Summary: Bad value range propagation for ternary operator
           Product: D
           Version: D1
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: thecybershadow@gmail.com


--- Comment #0 from Vladimir <thecybershadow@gmail.com> 2011-03-23 21:24:03 PDT ---
void main()
{
    bool b = true;
    ubyte bit = b ? 1 : 0;
}

With warnings enabled, the compiler complains:

test.d(4): Warning: implicit conversion of expression (b ? 1 : 0) of type int
to ubyte can cause loss of data

Doesn't happen with D2 (2.052).

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |clugdbug@yahoo.com.au


--- Comment #1 from Don <clugdbug@yahoo.com.au> 2011-03-23 21:31:51 PDT ---
(In reply to comment #0)
> void main()
> {
>     bool b = true;
>     ubyte bit = b ? 1 : 0;
> }
> 
> With warnings enabled, the compiler complains:
> 
> test.d(4): Warning: implicit conversion of expression (b ? 1 : 0) of type int
> to ubyte can cause loss of data
> 
> Doesn't happen with D2 (2.052).

D1 doesn't have range propagation! It's a D2 feature, which eliminates these kind of nonsense errors. I think this bug is probably invalid.

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Vladimir <thecybershadow@gmail.com> changed:

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


--- Comment #2 from Vladimir <thecybershadow@gmail.com> 2011-03-23 21:32:48 PDT ---
Oops :) You're probably right.

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