std::vector(C++17) | ||||
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(C++26) | ||||
(C++26) | ||||
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| Associative | ||||
| Unordered associative | ||||
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| Tables | ||||
| Iterator invalidation | ||||
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| Deduction guides(C++17) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Defined in header <vector> | ||
template<class InputIt, class Alloc=std::allocator< | (1) | (since C++17) |
template<ranges::input_range R, class Alloc=std::allocator<ranges::range_value_t<R>>> | (2) | (since C++23) |
InputIt satisfiesLegacyInputIterator andAlloc satisfiesAllocator.input_range.Note: the extent to which the library determines that a type does not satisfyLegacyInputIterator is unspecified, except that as a minimum integral types do not qualify as input iterators. Likewise, the extent to which it determines that a type does not satisfyAllocator is unspecified, except that as a minimum the member typeAlloc::value_type must exist and the expressionstd::declval<Alloc&>().allocate(std::size_t{}) must be well-formed when treated as an unevaluated operand.
| Feature-test macro | Value | Std | Feature |
|---|---|---|---|
__cpp_lib_containers_ranges | 202202L | (C++23) | Ranges-aware construction and insertion; overload(2) |
#include <vector> int main(){std::vector<int> v={1,2,3,4}; // uses explicit deduction guide to deduce std::vector<int>std::vector x(v.begin(), v.end()); // deduces std::vector<std::vector<int>::iterator>// first phase of overload resolution for list-initialization selects the candidate// synthesized from the initializer-list constructor; second phase is not performed// and deduction guide has no effectstd::vector y{v.begin(), v.end()};}
