[Issue 2319] New: "Win32 Exception" not very useful

[Don]

d-bugmail at puremagic.com wrote:
> http://d.puremagic.com/issues/show_bug.cgi?id=2319
> 
>            Summary: "Win32 Exception" not very useful
>            Product: D
>            Version: unspecified
>           Platform: PC
>                URL: http://msdn.microsoft.com/en-
>                     us/library/aa363082(VS.85).aspx
>         OS/Version: Windows
>             Status: NEW
>           Keywords: EH
>           Severity: enhancement
>           Priority: P3
>          Component: Phobos
>         AssignedTo: bugzilla at digitalmars.com
>         ReportedBy: nnbkxozgitfef at mailinator.com
> 
> 
> Currently _d_translate_se_to_d_exception() translates almost any Win32 SE
> (except for divide by zero, access violation and stack overflow) into a simple
> D Exception with the message set to "Win32 Exception" and no hint what the
> original exception was or where in the application the exception was raised.
> This is not at least helpful if you want to locate a bug.
> 
> At least D should differentiate between the exceptions here:
> http://msdn.microsoft.com/en-us/library/aa363082(VS.85).aspx
> ...or better get a copy of the original EXCEPTION_RECORD structure, or perhaps
> the most significant members like ExceptionCode and ExceptionAddress.

I added the two most useful ones (DATATYPE_MISALIGNMENT and 
ARRAY_BOUNDS_EXCEEDED) into my copy of Phobos1 and committed it by 
mistake. The misalignment one is a *huge* help for rapidly debugging SSE 
(asm array operations for example <g>) so I'll leave Walter to take it 
out or copy it to Phobos2.