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Functions for FixedPoint | ![]() |
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#include "vigra/fixedpoint.hxx" More...
Functions | |
| template<class TARGET, unsigned IntBits, unsigned FracBits> TARGET | fixed_point_cast (FixedPoint< IntBits, FracBits > v) |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> bool | operator== (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| equal | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> bool | operator!= (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| not equal | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> bool | operator< (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| less than | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> bool | operator<= (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| less or equal | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> bool | operator> (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| greater | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> bool | operator>= (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| greater or equal | |
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template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> FixedPointTraits< FixedPoint< IntBits1, FracBits1 >, FixedPoint< IntBits2, FracBits2 > >::PlusType | operator+ (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| addition with automatic determination of the appropriate result type. | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2, unsigned IntBits3, unsigned FracBits3> void | add (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r, FixedPoint< IntBits3, FracBits3 > &result) |
| addition with enforced result type. | |
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template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> FixedPointTraits< FixedPoint< IntBits1, FracBits1 >, FixedPoint< IntBits2, FracBits2 > >::MinusType | operator- (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| subtraction with automatic determination of the appropriate result type. | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2, unsigned IntBits3, unsigned FracBits3> void | sub (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r, FixedPoint< IntBits3, FracBits3 > &result) |
| subtraction with enforced result type. | |
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template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2> FixedPointTraits< FixedPoint< IntBits1, FracBits1 >, FixedPoint< IntBits2, FracBits2 > >::MultipliesType | operator * (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r) |
| multiplication with automatic determination of the appropriate result type. | |
| template<unsigned IntBits1, unsigned FracBits1, unsigned IntBits2, unsigned FracBits2, unsigned IntBits3, unsigned FracBits3> void | mul (FixedPoint< IntBits1, FracBits1 > l, FixedPoint< IntBits2, FracBits2 > r, FixedPoint< IntBits3, FracBits3 > &result) |
| multiplication with enforced result type. | |
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template<unsigned IntBits, unsigned FracBits> SquareRootTraits< FixedPoint< IntBits, FracBits > >::SquareRootResult | sqrt (FixedPoint< IntBits, FracBits > v) |
| square root. | |
| template<unsigned IntBits, unsigned FracBits> FixedPoint< IntBits, FracBits > | abs (FixedPoint< IntBits, FracBits > v) |
| absolute value. | |
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template<unsigned IntBits, unsigned FracBits> FixedPointTraits< FixedPoint< IntBits, FracBits >, FixedPoint< IntBits, FracBits > >::MultipliesType | squaredNorm (FixedPoint< IntBits, FracBits > v) |
| squared norm (same as v*v). | |
| template<unsigned IntBits, unsigned FracBits> FixedPoint< IntBits, FracBits > | norm (FixedPoint< IntBits, FracBits > const &v) |
| norm (same as abs). | |
| template<unsigned IntBits, unsigned FracBits> FixedPoint< 0, FracBits > | frac (FixedPoint< IntBits, FracBits > v) |
| fractional part. | |
| template<unsigned IntBits, unsigned FracBits> FixedPoint< 0, FracBits > | dual_frac (FixedPoint< IntBits, FracBits > v) |
dual fractional part: 1 - frac(v). | |
| template<unsigned IntBits, unsigned FracBits> int | floor (FixedPoint< IntBits, FracBits > v) |
| rounding down. | |
| template<unsigned IntBits, unsigned FracBits> int | ceil (FixedPoint< IntBits, FracBits > v) |
| rounding up. | |
| template<unsigned IntBits, unsigned FracBits> int | round (FixedPoint< IntBits, FracBits > v) |
| rounding to the nearest integer. | |
Detailed Description |
These functions fulfill the requirements of an AlgebraicRing.
Namespace: vigra
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Convert a FixedPoint to a built-in type. If the target is integral, the value is rounded. FixedPoint<16,15> fp(...);
double d = fixed_point_cast<double>(fp);
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© Ullrich Köthe (koethe@informatik.uni-hamburg.de) |
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