[10176] Use std::isnan in the hope more non-MS platforms provide it.

[newsbot]

<pre>m contrib/vmap_extractor_v3/README
m src/shared/revision_nr.h
m src/shared/vmap/BIH.h

[10176] Use std::isnan in the hope more non-MS platforms provide it.

Note that G3D::isNaN() is simply wrong IMHO...and not even inlined.
One day, there will be a usable C++ standard not light-years behind good old
C...</pre>



Дальше... (http://github.com/mangos/mangos/commit/9953b123a7589656c0aa7035ed9a488de7a9c34b)