On Fri, 14 Jan 2011 11:19:34 -0500, Jonathan M Davis <[email protected]> wrote:

On Friday 14 January 2011 05:43:19 Robert Jacques wrote:
On Fri, 14 Jan 2011 06:36:18 -0500, dsource.org <[email protected]>

wrote:
> phobos commit, revision 2331
>
>
> user: jmdavis
>
> msg:
> Re-enabled std.datetime for Windows but disabled its unit tests for
> Windows.
>
> For some reason, the std.datetime unit tests compile and pass without
> problems on Linux and in Wine on Linux, but on real Windows, the
> compiler runs out of memory when compiling them. So, for now, all of the
> std.datetime unit tests are versioned with testStdDateTime. On Posix,
> version=testdStdDateTime is used in std.datetime, so the tests will run,
> but that version is not set on Windows, so the unit tests don't run on
> Windows. So, if you want to run the std.datetime unit tests on Windows or
> under Wine or Linux, then compile with -version=testStdDateTime.
>
> At the moment, all of the tests pass on both Linux and under Wine, and
> the normal code does compile on proper, so I'm fairly certain that it's
> fine
> for use on Windows, but for now, I can't enable the tests on Windows. My > best guess is that it's some sort of weird compiler bug involving system
> calls that leak memory on Windows-proper but not in Wine, but I really
> don't know.
>
> http://www.dsource.org/projects/phobos/changeset/2331
>
> paths changed:
> U   trunk/phobos/std/datetime.d
>
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If DMD is running out of memory at compile time, I doubt it has to do with weird compiler bugs. DMD running out of memory is usually a sign of heavy
compile time string manipulation, CTFE or template usage. Remember, DMD
keeps all template instantiations in memory and every time a string or
array is touched, a new copy is created (bug 1382).

Yes. But to then have it not only work on Linux but on Wine and yet not work on Windows? The only real difference between running something under Wine and
Windows is that the implementation of system calls as changed.

Well, is the crash due to a marginal difference in memory levels, or something major? i.e. is DMD's memory usage on Wine also very high, or is it relatively low.
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