[Issue 3583] New: Unsigned right shift works the same as signed right shift.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3583

           Summary: Unsigned right shift works the same as signed right
                    shift.
           Product: D
           Version: future
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Keywords: wrong-code
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: dsimcha at yahoo.com


--- Comment #0 from David Simcha <dsimcha at yahoo.com> 2009-12-06 12:15:14 PST ---
import std.stdio;

void main() {
    int i = 0b10000000_00000000_00000000_00000010;

    int iSigned = i >> 2;
    writefln(" int  >>:  %.32b", iSigned);

    int iUnsigned = i >>> 2;
    writefln(" int >>>:  %.32b", iUnsigned);

    uint u = cast(uint) i;

    uint uSigned = u >> 2;
    writefln(" uint >>:  %.32b", uSigned);

    uint uUnsigned = u >>> 2;
    writefln("uint >>>:  %.32b", uUnsigned);
}

Output (DMD 2.037):

 int  >>:  11100000000000000000000000000000
 int >>>:  11100000000000000000000000000000
 uint >>:  00100000000000000000000000000000
uint >>>:  00100000000000000000000000000000

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