std::unordered_map<Key,T,Hash,KeyEqual,Allocator>::insert_or_assign std::unordered_map<Key,T,Hash,KeyEqual,Allocator>::emplace std::unordered_map<Key,T,Hash,KeyEqual,Allocator>::emplace_hint std::unordered_map<Key,T,Hash,KeyEqual,Allocator>::try_emplace std::unordered_map<Key,T,Hash,Ke...
{ int a; string b = "label"; }; struct Comparer { bool operator() (K a, K b) { return a.a < b.a; } }; map<K, double, Comparer> m; K const s1{1}; K const s2{2}; K const s3{3}; int main() { m.emplace(s1, 1.08); m.emplace(s2, 3.14); m.emplace(s3, 5.21...
N4279 insert_or_assign()/try_emplace() For map/unordered_map VS 2015 14 N4280 size(), empty(), data() VS 2015 14 N4366 Precisely Constraining unique_ptr Assignment VS 2015 14 N4387 Improving pair And tuple VS 2015.2 14 N4389 bool_constant VS 2015 14 N4508 sha...
N4279 insert_or_assign()/try_emplace() For map/unordered_map VS 2015 14 N4280 size(), empty(), data() VS 2015 14 N4366 Precisely Constraining unique_ptr Assignment VS 2015 14 N4387 Improving pair And tuple VS 2015.2 14 N4389 bool_constant VS 2015 14 N4508 sha...
N4279 insert_or_assign()/try_emplace() For map/unordered_map VS 2015 14 N4280 size(), empty(), data() VS 2015 14 N4366 Precisely Constraining unique_ptr Assignment VS 2015 14 N4387 Improving pair And tuple VS 2015.2 14 N4389 bool_constant VS 2015 14 N4508 sha...
unordered_map的用法和map是一样的,提供了 insert,size,count等操作,并且里面的元素也是以pair类型来存贮的。其底层实现是完全不同的,上方已经解释了,但是就外部使用来说却是一致的。 5.C++ Map常见用法说明 常用操作汇总举例: #include <iostream> #include <unordered_map> #include <map> #include <string> ...
* The unordered containers did not swap their hashers or predicates when the containers themselves were swapped. Now they do. * Many container swap operations are now marked noexcept (as our STL never intends to throw an exception when detecting the non-propagate_on_container_swap non-equal-allo...
#include <unordered_map> #include <unordered_set> #include <utility> Expand Down Expand Up @@ -510,17 +511,17 @@ struct TORCH_API IValue final { template < typename... Args, std::enable_if_t< !guts::disjunction< !std::disjunction< std::is_lvalue_reference<Args>..., guts::negatio...
_back list: remove, emplace, emplace_front, insert_range, insert_count set: erase_node, erase_range map: insert_or_assign umap: insert_or_assign, insert_or_assign_found uset: clear, equal, insert_found, union, difference, intersection, symmetric_difference, emplace, emplace_found, emplace_...
unordered_map的用法和map是一样的,提供了 insert,size,count等操作,并且里面的元素也是以pair类型来存贮的。其底层实现是完全不同的,上方已经解释了,但是就外部使用来说却是一致的。 5.C++ Map常见用法说明 常用操作汇总举例: #include <iostream> #include <unordered_map> #include <map> #include <string> ...