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permuteme with NRPerm

This commit is contained in:
Jiri Pittner 2022-10-28 19:51:27 +02:00
parent 31c45d44ec
commit 496f004b5b
2 changed files with 7 additions and 0 deletions
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6
vec.cc
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@ -841,6 +841,12 @@ else for(int i=1; i<=n; ++i) r[p[i]-1] = v[i-1];
return r;
}
template<typename T>
void NRVec<T>::permuteme(const NRPerm<int> &p, bool inverse)
{
NRVec<T> tmp=permuted(p,inverse);
for(int i=0; i<size(); ++i) v[i] = tmp.v[i];
}
template<typename T>
void NRVec<T>::permuteme(const CyclePerm<int> &p)

1
vec.h
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@ -347,6 +347,7 @@ public:
//! permute vector elements
const NRVec permuted(const NRPerm<int> &p, const bool inverse=false) const;
void permuteme(const CyclePerm<int> &p); //in place
void permuteme(const NRPerm<int> &p, const bool inverse=false); //formally in place, but allocates a copy
//! compute the sum of the absolute values of the elements of this vector
inline const typename LA_traits<T>::normtype asum() const;