51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
|
#include <std/std_valarray.h>
|
||
|
|
|
||
|
|
// Some Explicit Instanciations.
|
||
|
|
template class multiplies<size_t>;
|
||
|
|
template size_t accumulate(size_t*, size_t*, size_t, multiplies<size_t>);
|
||
|
|
|
||
|
|
template void
|
||
|
|
__valarray_fill(size_t* __restrict__, size_t, const size_t&);
|
||
|
|
|
||
|
|
template void
|
||
|
|
__valarray_copy(const size_t* __restrict__, size_t, size_t* __restrict__);
|
||
|
|
|
||
|
|
template valarray<size_t>::valarray(size_t);
|
||
|
|
template valarray<size_t>::~valarray();
|
||
|
|
template valarray<size_t>::valarray(const valarray<size_t>&);
|
||
|
|
template size_t valarray<size_t>::size() const;
|
||
|
|
template size_t& valarray<size_t>::operator[](size_t);
|
||
|
|
template size_t valarray<size_t>::product() const;
|
||
|
|
|
||
|
|
|
||
|
|
void __gslice_to_index(size_t __o, const valarray<size_t>& __l,
|
||
|
|
const valarray<size_t>& __s,
|
||
|
|
valarray<size_t>& __i)
|
||
|
|
{
|
||
|
|
const size_t __n = __l.size();
|
||
|
|
size_t* const __t = static_cast<size_t*>(alloca(__n*sizeof(size_t)));
|
||
|
|
__valarray_fill(__t, __n, size_t(0));
|
||
|
|
const size_t __z = __i.size();
|
||
|
|
__valarray_fill(&__i[0], __z, __o);
|
||
|
|
for (size_t __j=0; __j<__z; ++__j) {
|
||
|
|
for (size_t __k=0; __k<__n; ++__k)
|
||
|
|
__i[__j] += __s[__k]*__t[__k];
|
||
|
|
++__t[__n-1];
|
||
|
|
for (size_t __k=__n-1; __k; --__k) {
|
||
|
|
if (__t[__k] >= __l[__k]) {
|
||
|
|
__t[__k] = 0;
|
||
|
|
++__t[__k-1];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
_Indexer::_Indexer(size_t __o, const valarray<size_t>& __l,
|
||
|
|
const valarray<size_t>& __s)
|
||
|
|
: _M_count(1), _M_start(__o), _M_size(__l), _M_stride(__s),
|
||
|
|
_M_index(__l.size() ? __l.product() : 0)
|
||
|
|
{ __gslice_to_index(__o, __l, __s, _M_index); }
|
||
|
|
|
||
|
|
|
||
|
|
|