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[iter] Constrain hb_fill() and hb_copy()

This commit is contained in:
Behdad Esfahbod 2019-01-08 13:00:06 -08:00
parent dc0a98cbe7
commit 54c30e949e
1 changed files with 7 additions and 3 deletions
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10
src/hb-iter.hh
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@ -194,15 +194,19 @@ struct hb_is_iterator_of { enum {
* Algorithms operating on iterators or iteratables. * Algorithms operating on iterators or iteratables.
*/ */
template <typename C, typename V> inline void template <typename C, typename V> inline
hb_enable_if_t (hb_is_iterable (C),
void)
hb_fill (C& c, const V &v) hb_fill (C& c, const V &v)
{ {
for (typename C::iter_t i (c); i; i++) for (typename C::iter_t i (c); i; i++)
hb_assign (*i, v); hb_assign (*i, v);
} }
template <typename S, typename D> inline bool template <typename S, typename D> inline
hb_copy (hb_iter_t<D> &id, hb_iter_t<S> &is) hb_enable_if_t (hb_is_iterator (S) && hb_is_iterator (D),
bool)
hb_copy (D id, S is)
{ {
for (; id && is; ++id, ++is) for (; id && is; ++id, ++is)
*id = *is; *id = *is;