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[pair] Use decltype

This commit is contained in:
Behdad Esfahbod 2019-01-28 21:16:51 -05:00
parent a30e13469e
commit 9103bd056f
1 changed files with 2 additions and 2 deletions
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4
src/hb-algs.hh
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@ -63,13 +63,13 @@ hb_pair (T1 a, T2 b) { return hb_pair_t<T1, T2> (a, b); }
static const struct hb_first_ft
{
template <typename Pair> typename Pair::first_t
template <typename Pair> decltype (hb_declval (Pair).first)
operator () (const Pair& pair) const { return pair.first; }
} hb_first HB_UNUSED;
static const struct hb_second_ft
{
template <typename Pair> typename Pair::second_t
template <typename Pair> decltype (hb_declval (Pair).second)
operator () (const Pair& pair) const { return pair.second; }
} hb_second HB_UNUSED;