/**
* \param i for i=0, returns the first component of the vector (x), for
* i=1, returns the second component of the vector (y), for i=2,
* returns the third component of the vector (z), for i=3, returns
* the scalar (w).
*/
const REAL& QUAT::operator[](unsigned i) const
{
switch (i)
{
case 0: return x;
case 1: return y;
case 2: return z;
case 3: return w;
default:
throw InvalidIndexException();
}
// make compiler happy
return x;
}
Variable * Variable_bool::at(const str8 &index) const {
throw InvalidIndexException();
return 0;
}
Variable * Variable_bool::at(size_t index) const {
if (index != 0) {
throw InvalidIndexException();
}
return const_cast<Variable_bool *>(this);
}