On 2017/11/9 15:46, David Lee wrote:
Thanks for the reply.
You are welcome. :>
(1) Your observation seems to apply to the whole *wprintf() family
(fwprintf(), swprintf(), etc), not just wprintf().
It seems so. I am not clear how libstdc++ is making use if these
functions. If they didn't even go into libstdc++ headers, that macro
should probably not be pre-defined I think. Notwithstanding standard
conformance, backward compatibility with legacy code should be kept. If
the standard says "%ls" but MS says "%s" then we had better let the user
make the choice hence pre-defining it is pretty bad. You might want to
file a bug to libstdc++.
(2) On Windows with gcc/g++:
(a) If I need to migrate some C code (using broken *wprintf()) into C++,
and
(b) the inclusion of stdio.h is to be changed to cstdio and/or
cwchar (so *wprintf() are no longer broken),
Then the format specifiers are something to watch for.
Yes. stdio functions should be thoroughly tested.
Regards,
David Lee
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