On Tue, 2010-11-02 at 14:26 +0000, Caolán McNamara wrote:
On Mon, 2010-11-01 at 20:56 +0200, Jani Monoses wrote:
Is there a list of which compilers are supported and what versions
recommeneded for building LO?
I was thinking of the feasibility of using gcc's __builtin_constant_p in
a macro to differentiate fast and not so fast paths for createFromAscii
cases to keep the code uniform but still get the optimizations, but then
figured that would not work with Visual Studio.
My first thought was that this would be ideal to at a minimum jam into
the existing RTL_CONSTASCII_USTRINGPARAM to detect if someone used
RTL_CONSTASCII_USTRINGPARAM with something unsuitable.
So, with a bit more poking around I discovered the template trick to
force a compile time error if the argument is not an array, and to
calculate at compile time the length of the array.
http://cgit.freedesktop.org/libreoffice/ure/commit/?h=feature/rodatastrings
Stuffed into that rodatastrings branch because there's a sad edge case
where the template cannot work with an anonymous class in current C++,
though this is fixed in the up and coming C++0x. See the comment in the
patch for the technical details.
I built with this trick earlier and found some misuses of
RTL_CONSTASCII_USTRINGPARAM, but none of them since the start of
LibreOffice, all preexisting :-)
C.
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