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[iter] Add const_iter_t / const_iter()

This commit is contained in:
Behdad Esfahbod 2018-12-21 16:19:44 -05:00
parent aaddfaa57a
commit 40d71211a8
1 changed files with 2 additions and 0 deletions
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2
src/hb-iter.hh
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@ -45,6 +45,7 @@ template <typename Iter, typename Item = typename Iter::__item_type__>
struct hb_iter_t struct hb_iter_t
{ {
typedef Iter iter_t; typedef Iter iter_t;
typedef iter_t const_iter_t;
typedef Item item_t; typedef Item item_t;
/* https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern */ /* https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern */
@ -67,6 +68,7 @@ struct hb_iter_t
/* Methods. */ /* Methods. */
iter_t iter () const { return *thiz(); } iter_t iter () const { return *thiz(); }
const_iter_t const_iter () const { return iter (); }
item_t& item () const { return thiz()->__item__ (); } item_t& item () const { return thiz()->__item__ (); }
item_t& item_at (unsigned i) const { return thiz()->__item_at__ (i); } item_t& item_at (unsigned i) const { return thiz()->__item_at__ (i); }
bool more () const { return thiz()->__more__ (); } bool more () const { return thiz()->__more__ (); }