/usr/include/givaro/givintrns_cstor.inl is in libgivaro-dev 3.2.13-1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | // -- Array of primes are given
//#ifndef __ECC
//template<template<class> class Container>
//#else
template<template <class,class> class Container, template <class> class Alloc>
//#endif
inline IntRNSsystem<Container, Alloc>::IntRNSsystem( const IntRNSsystem<Container, Alloc>::array& inprimes)
: _primes(inprimes),
_prod(one), _ck(0)
{
GIVARO_ASSERT( inprimes.size()>0, "[IntRNSsystem::IntRNSsystem] bad size of array");
}
// -- Array of primes are given
//#ifndef __ECC
template<template<class,class> class Container, template <class> class Alloc>
template <class TT>
inline IntRNSsystem< Container, Alloc >::IntRNSsystem( const Container<TT, Alloc<TT> >& inprimes)
: _prod(one), _ck(0)
{
GIVARO_ASSERT( inprimes.size()>0, "[IntRNSsystem::IntRNSsystem] bad size of array");
_primes.resize(inprimes.size());
typename Container<TT, Alloc<TT> >::const_iterator np = inprimes.begin();
for(typename array::iterator pi = _primes.begin(); pi != _primes.end(); ++pi, ++np)
*pi = Element( *np );
}
//#else
//template<class Container> template <class ContTT>
//inline IntRNSsystem< Container >::IntRNSsystem( const ContTT& inprimes)
// : _prod(one), _ck(0)
//{
// GIVARO_ASSERT( inprimes.size()>0, "[IntRNSsystem< Container >::IntRNSsystem] bad size of array");
// _primes.resize(inprimes.size());
// typename ContTT::const_iterator np = inprimes.begin();
// for(typename array::iterator pi = _primes.begin(); pi != _primes.end(); ++pi, ++np)
// *pi = Element( *np );
//}
//#endif
// -- Product of primes
//#ifndef __ECC
template<template<class,class> class Container, template <class> class Alloc>
//#else
//template<class Container>
//#endif
inline void IntRNSsystem< Container, Alloc >::ComputeProd()
{
if (isOne(_prod))
for (typename array::const_iterator pi = _primes.begin();pi != _primes.end(); ++pi)
mulin(_prod, *pi);
}
// -- Computes Ck , Ck = (\prod_{i=0}^{k-1} primes[i])^(-1) % primes[k],
// for k=1..(_sz-1)
//#ifndef __ECC
template<template<class,class> class Container, template <class> class Alloc>
//#else
//template<class Container>
//#endif
inline void IntRNSsystem< Container, Alloc >::ComputeCk()
{
if (_ck.size() !=0) return; // -- already computed
// - reallocation of a new array :
size_t size = _primes.size();
_ck.resize(size);
_ck[0] = Element::zero; // -- undefined and never used
for (size_t k=1; k < size; ++k)
{
Element prod = _primes[0];
for (size_t i= 1; i < k; ++i)
modin( mulin( prod, _primes[i]), _primes[k]);
Element g,u;
gcd(g,u, _ck[k],_primes[k],prod); // _ck[k] * prod = g mod _primes[k]
}
}
//#ifndef __ECC
template<template<class,class> class Container, template<class> class Alloc>
//#else
//template<class Container>
//#endif
inline const typename IntRNSsystem< Container, Alloc >::array& IntRNSsystem< Container, Alloc >::Primes() const
{
return _primes;
}
//#ifndef __ECC
template<template<class, class> class Container, template <class> class Alloc>
//#else
//template<class Container>
//#endif
inline const typename IntRNSsystem< Container, Alloc >::Element IntRNSsystem< Container, Alloc >::ith(const size_t i) const
{
return _primes[i];
}
//#ifndef __ECC
template<template<class,class> class Container, template <class> class Alloc>
//#else
//template<class Container>
//#endif
inline const typename IntRNSsystem< Container, Alloc >::Element IntRNSsystem< Container, Alloc >::product() const
{
((IntRNSsystem< Container, Alloc >*)this)->ComputeProd();
return _prod;
}
//#ifndef __ECC
template<template<class,class> class Container, template <class> class Alloc>
//#else
//template<class Container>
//#endif
inline const typename IntRNSsystem< Container, Alloc >::array& IntRNSsystem< Container, Alloc >::Reciprocals() const
{
if (_ck.size() ==0) ((IntRNSsystem< Container, Alloc >*)this)->ComputeCk();
return _ck;
}
//#ifndef __ECC
template<template<class,class> class Container, template <class> class Alloc>
//#else
//template<class Container>
//#endif
inline const typename IntRNSsystem< Container, Alloc >::Element IntRNSsystem< Container, Alloc >::reciprocal(const size_t i) const
{
if (_ck.size() ==0) ((IntRNSsystem< Container, Alloc >*)this)->ComputeCk();
return _ck[i];
}
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