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Add alloc_construct_n overload for input iterators

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Glen Fernandes
2019-05-11 12:37:48 -04:00
parent b0df75ad1c
commit 6b65cde816
3 changed files with 51 additions and 0 deletions
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include/boost/core/alloc_construct.hpp
+22
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@@ -130,6 +130,17 @@ alloc_construct_n(A& a, T* p, std::size_t n, const T* l, std::size_t m)
}
hold.size() = 0;
}
template<class A, class T, class I>
inline void
alloc_construct_n(A& a, T* p, std::size_t n, I b)
{
detail::alloc_destroyer<A, T> hold(a, p);
for (std::size_t& i = hold.size(); i < n; void(++i), void(++b)) {
std::allocator_traits<A>::construct(a, p + i, *b);
}
hold.size() = 0;
}
#else
template<class A, class T>
inline void
@@ -202,6 +213,17 @@ alloc_construct_n(A& a, T* p, std::size_t n, const T* l, std::size_t m)
}
hold.size() = 0;
}
template<class A, class T, class I>
inline void
alloc_construct_n(A& a, T* p, std::size_t n, I b)
{
detail::alloc_destroyer<A, T> hold(a, p);
for (std::size_t& i = hold.size(); i < n; void(++i), void(++b)) {
::new(static_cast<void*>(p + i)) T(*b);
}
hold.size() = 0;
}
#endif
} /* boost */