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[iter] Make hb_zip() a function-object

This commit is contained in:
Behdad Esfahbod 2019-02-14 11:07:12 -08:00
parent f8fcfb263e
commit aa4c321262
1 changed files with 8 additions and 5 deletions
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13
src/hb-iter.hh
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@ -358,11 +358,14 @@ struct hb_zip_iter_t :
A a;
B b;
};
template <typename A, typename B,
hb_enable_if (hb_is_iterable (A) && hb_is_iterable (B))>
inline hb_zip_iter_t<hb_iter_t (A), hb_iter_t (B)>
hb_zip (const A& a, const B &b)
{ return hb_zip_iter_t<hb_iter_t (A), hb_iter_t (B)> (a.iter (), b.iter ()); }
static const struct
{
template <typename A, typename B,
hb_enable_if (hb_is_iterable (A) && hb_is_iterable (B))>
hb_zip_iter_t<hb_iter_t (A), hb_iter_t (B)>
operator () (const A& a, const B &b) const
{ return hb_zip_iter_t<hb_iter_t (A), hb_iter_t (B)> (a.iter (), b.iter ()); }
} hb_zip HB_UNUSED;
/* hb_sink() */