PxUnionCast.h

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#ifndef PXFOUNDATION_PXUNIONCAST_H
#define PXFOUNDATION_PXUNIONCAST_H
 
#include "foundation/Px.h"
 
#if !PX_DOXYGEN
namespace physx
{
#endif
 
// Needed for clang 7
#if PX_CLANG && PX_CLANG_MAJOR >= 7
 #define USE_VOLATILE_UNION volatile 
#else
 #define USE_VOLATILE_UNION
#endif
 
template <class A, class B>
PX_FORCE_INLINE A PxUnionCast(B b)
{
    union AB
    {
        AB(B bb) : _b(bb)
        {
        }
         B _b;
         A _a;
    } USE_VOLATILE_UNION u(b);
    return u._a;
}
 
#undef USE_VOLATILE_UNION
 
#if !PX_DOXYGEN
} // namespace physx
#endif
 
#endif // PXFOUNDATION_PXUNIONCAST_H