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use friends to handle copy constructors correctly

master
Daniel Kolesa 2015-06-25 01:16:19 +01:00
parent ddb18b9d0d
commit a4d33c5cd7
1 changed files with 9 additions and 3 deletions
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12
octa/internal/hashtable.h
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@ -42,6 +42,9 @@ namespace detail {
template<typename T>
struct HashRange: octa::InputRange<HashRange<T>, octa::ForwardRangeTag, T> {
private:
template<typename U>
friend struct HashRange;
using Chain = octa::detail::HashChain<T>;
Chain **p_beg;
@ -70,8 +73,8 @@ public:
HashRange(const HashRange<U> &v, octa::EnableIf<
octa::IsSame<RemoveCv<T>, RemoveCv<U>>::value &&
octa::IsConvertible<U *, T *>::value, bool
> = true): p_beg(*((Chain ***)&v)), p_end(*(((Chain ***)&v) + 1)),
p_node(*(((Chain **)&v) + 2)) {}
> = true): p_beg((Chain **)v.p_beg), p_end((Chain **)v.p_end),
p_node((Chain *)v.p_node) {}
HashRange &operator=(const HashRange &v) {
p_beg = v.p_beg;
@ -100,6 +103,9 @@ public:
template<typename T>
struct BucketRange: octa::InputRange<BucketRange<T>, octa::ForwardRangeTag, T> {
private:
template<typename U>
friend struct BucketRange;
using Chain = octa::detail::HashChain<T>;
Chain *p_node;
public:
@ -111,7 +117,7 @@ public:
BucketRange(const BucketRange<U> &v, octa::EnableIf<
octa::IsSame<RemoveCv<T>, RemoveCv<U>>::value &&
octa::IsConvertible<U *, T *>::value, bool
> = true): p_node(*((Chain **)&v)) {}
> = true): p_node((Chain *)v.p_node) {}
BucketRange &operator=(const BucketRange &v) {
p_node = v.p_node;