Enum member isBufferVectorField
Evaluates to true if FuncType is a vector field which takes an additional (but often optional) buffer of type RetType[] as the second argument.
enum isBufferVectorField(FuncType, ArgType, RetType)
= __traits(compiles, ()
{
ArgType[] x;
RetType[] buf;
FuncType f;
RetType[] y = f(x, buf);
}
);