//---------------------------------------------------------------------------
// Range::unionRanges
//---------------------------------------------------------------------------
RangePtr Range::unionRanges(const Range& r) throw ( Exception )
{
if( r.stride() != m_stride )
{
THROW_INVALID_RANGE("Stride must identical to make a Range union!", "Range::unionRanges");
}
if (this->length() == 0)
{
return RangePtr(new Range(r));
}
if (r.length() == 0)
{
return RangePtr(new Range(* this));
}
long first, last;
std::string name = m_name;
// Seek the smallest value
first = m_first < r.first() ? m_first : r.first();
last = m_last > r.last() ? m_last : r.last();
return RangePtr(new Range(name, first, last, m_stride));
}
//---------------------------------------------------------------------------
// Range::intersect
//---------------------------------------------------------------------------
RangePtr Range::intersect(const Range& r) throw ( Exception )
{
if ((length() == 0) || (r.length() == 0))
{
return RangePtr ( new Range());
}
long last = this->last() > r.last() ? r.last() : this->last();
long stride = this->stride() * r.stride();
long useFirst;
if (stride == 1)
{
useFirst = this->first() > r.first() ? this->first() : r.first();
}
else if (this->stride() == 1)
{ // then r has a stride
if (r.first() >= first())
{
useFirst = r.first();
}
else
{
long incr = (first() - r.first()) / stride;
useFirst = r.first() + incr * stride;
if (useFirst < first())
useFirst += stride;
}
}
else if (r.stride() == 1)
{ // then this has a stride
if (first() >= r.first())
{
useFirst = first();
}
else
{
long incr = (r.first() - first()) / stride;
useFirst = first() + incr * stride;
if (useFirst < r.first())
useFirst += stride;
}
}
else
{
THROW_INVALID_RANGE("Intersection when both ranges have a stride", "Range::intersect");
}
if (useFirst > last)
{
return RangePtr(new Range());
}
else
{
return RangePtr(new Range(m_name, useFirst, last, stride));
}
}
//---------------------------------------------------------------------------
// Range::intersects
//---------------------------------------------------------------------------
bool Range::intersects(const Range& r)
{
if ((length() == 0) || (r.length() == 0))
{
#ifdef CDMA_STD_SMART_PTR
return bool(RangePtr ( new Range()));
#else
return RangePtr( new Range() );
#endif
}
long last = this->last() > r.last() ? r.last() : this->last();
long stride = this->stride() * r.stride();
long useFirst;
if (stride == 1)
{
useFirst = this->first() > r.first() ? this->first() : r.first();
}
else if (this->stride() == 1) // then r has a stride
{
if (r.first() >= first())
{
useFirst = r.first();
}
else
{
long incr = (first() - r.first()) / stride;
useFirst = r.first() + incr * stride;
if (useFirst < first())
useFirst += stride;
}
}
else if (r.stride() == 1) // then this has a stride
{
if (first() >= r.first())
{
useFirst = first();
}
else
{
long incr = (r.first() - first()) / stride;
useFirst = first() + incr * stride;
if (useFirst < r.first())
useFirst += stride;
}
}
else
{
THROW_INVALID_RANGE("Intersection when both ranges have a stride", "Range::intersects");
}
return (useFirst <= last);
}
//---------------------------------------------------------------------------
// Range::compose
//---------------------------------------------------------------------------
RangePtr Range::compose(const Range& range) throw ( Exception )
{
Range* res = NULL;
if ((length() == 0) || (range.length() == 0))
{
res = new Range();
}
else
{
long first = element(range.first());
long strid = stride() * range.stride();
long last = element(range.last());
res = new Range( m_name, first, last, strid);
}
return RangePtr(res);
}
int main()
{
double z = 1.0;
cout << "Some inquiries into the nature of double:" << endl
<< "digits(z) = " << digits(z) << endl
<< "epsilon(z) = " << epsilon(z) << endl
<< "huge(z) = " << huge(z) << endl
<< "tiny(z) = " << tiny(z) << endl
<< "max_exponent(z) = " << max_exponent(z) << endl
<< "min_exponent(z) = " << min_exponent(z) << endl
<< "max_exponent10(z) = " << max_exponent10(z) << endl
<< "min_exponent10(z) = " << min_exponent10(z) << endl
<< "precision(z) = " << precision(z) << endl
<< "radix(z) = " << radix(z) << endl;
Range r = range(z);
cout << "range(z) = [ " << r.first() << ", " << r.last() << " ]"
<< endl;
cout << endl << "More obscure properties:" << endl
<< "is_signed(z) = " << is_signed(z) << endl
<< "is_integer(z) = " << is_integer(z) << endl
<< "is_exact(z) = " << is_exact(z) << endl
<< "round_error(z) = " << round_error(z) << endl
<< "has_infinity(z) = " << has_infinity(z) << endl
<< "has_quiet_NaN(z) = " << has_quiet_NaN(z) << endl
<< "has_signaling_NaN(z) = " << has_signaling_NaN(z) << endl
<< "has_denorm(z) = " << has_denorm(z) << endl
<< "has_denorm_loss(z) = " << has_denorm_loss(z) << endl
<< "infinity(z) = " << infinity(z) << endl
<< "quiet_NaN(z) = " << quiet_NaN(z) << endl
<< "signaling_NaN(z) = " << signaling_NaN(z) << endl
<< "denorm_min(z) = " << denorm_min(z) << endl
<< "is_iec559(z) = " << is_iec559(z) << endl
<< "is_bounded(z) = " << is_bounded(z) << endl
<< "is_modulo(z) = " << is_modulo(z) << endl
<< "traps(z) = " << traps(z) << endl
<< "tinyness_before(z) = " << tinyness_before(z) << endl;
return 0;
}
void Camera::updateview(Range<int16_t> mapwalls, Range<int16_t> mapborders)
{
hbounds = Range<int16_t>(-mapwalls.first() - 10, -mapwalls.second() + 10);
vbounds = -mapborders;
}