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coord/ops: expand dot product to accept arrays

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This commit is contained in:
Danny Robson 2015-11-04 17:10:16 +11:00
parent 176b33604b
commit 23fff4a65a
1 changed files with 35 additions and 4 deletions
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39
coord/ops.hpp
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@ -285,6 +285,18 @@ namespace util {
//-------------------------------------------------------------------------
template <
size_t S,
typename T
>
T dot (const T (&a)[S], const T (&b)[S])
{
T sum = 0;
for (size_t i = 0; i < S; ++i)
sum += a[i] * b[i];
return sum;
}
template <
size_t S,
typename T,
@ -293,12 +305,31 @@ namespace util {
>
T dot (A<S,T> a, B<S,T> b)
{
T sum { 0 };
for (size_t i = 0; i < S; ++i)
sum += a[i] * b[i];
return sum;
return dot<S,T> (a.data, b.data);
}
template <
size_t S,
typename T,
template <size_t,typename> class K
>
T dot (K<S,T> a, const T (&b)[S])
{
return dot<S,T> (a.data, b);
}
template <
size_t S,
typename T,
template <size_t,typename> class K
>
T dot (const T (&a)[S], K<S,T> b)
{
return dot<S,T> (a, b.data);
}
//-------------------------------------------------------------------------
template <
size_t S,