PPerm¶
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template<size_t N = 0, typename Scalar = std::conditional_t<N == 0, uint32_t, typename SmallestInteger<N>::type>>
class PPerm : public PTransf<0, std::conditional_t<0 == 0, uint32_t, typename SmallestInteger<0>::type>>¶ Defined in
transf.hpp.A partial permutation \(f\) is just an injective partial transformation, which is stored as a vector of the images of \(\{0, 1, \ldots, n - 1\}\), i.e. i.e. \(\{(0)f, (1)f, \ldots, (n - 1)f\}\) where the value UNDEFINED is used to indicate that \((i)f\) is undefined (i.e. not among the points where \(f\) is defined).
If
Nis0(the default), then the degree of a PPerm instance can be defined at runtime, and ifNis not0, then the degree is fixed at compile time.If
Nis0, then the default value ofScalarisuint32_t. IfNis not0, then the default value ofScalaris the smallest integer type able to holdN. See also SmallestInteger.Note
PPerm has the same member functions as StaticPTransf and DynamicPTransf, this isn’t current reflected by the contents of this page.
- Template Parameters:
N – the degree (default:
0)Scalar – an unsigned integer type (the type of the image values)
Member types¶
Constructors¶
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Static member functions¶
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