[Issue 5439] New: 64bit struct alignment inconsistent with C ABI

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5439

           Summary: 64bit struct alignment inconsistent with C ABI
           Product: D
           Version: D1 & D2
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: ibuclaw at ubuntu.com


--- Comment #0 from Iain Buclaw <ibuclaw at ubuntu.com> 2011-01-09 11:03:22 PST ---
This was caused by bug2821. On 64bit, doubles are 8-byte aligned, not 4, so

struct { long, short }

Should have a sizeof = 16, not 12.

Btw, would be nice if you offered a -malign-double type flag to say "Yes, I
want 8 byte aligned doubles on 32bit Linux" :)

Regards

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