Hi,
as mentioned in ticket #20 (https://opensg.vrsource.org/trac/ticket/20)
I have found a different implementation for osgispower2 and
osgnextpower2 (from OSGBaseFunctions.h).
Now, currently there is code like this:
in OSGBaseFunctions.h
template <class TypeT> inline
bool osgispower2(TypeT rValue);
and in OSGBaseFunctions.inl
template <> inline
bool osgispower2<UInt32>(UInt32 rValue)
{
// code
}
template <> inline
bool osgispower2<Int32>(Int32 rValue)
{
// code
}
The current code for the Int32 case (correctly) returns false for
negative input and (incorrectly) true for 0. Now the question is what is
the most useful behavior here ? Keep as is, just fix the handling of 0,
return true for numbers of the form -(2^n) as well ?
Thanks,
Carsten
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