_Map_base<_Key, _Pair, std::_Select1st<_Pair>, true, _Hashtable>::mapped_type = std::mutex]\xe2\x80\x99\nf.cpp:6:8: required from here\n/usr/include/c++/4.7/bits/stl_pair.h:126:45: error: use of deleted function \xe2\x80\x98std::mutex::mutex(const std::mutex&)\xe2\x80...
#include <unordered_map>#include <string>int main(){// 哈希表默认初始化// 函数原型:unordered_map();// 创建一个空的 unordered_map 容器std::unordered_map<std::string, int> umap1;// 使用列表初始化// 函数原型:unordered_map(initializer_list<value_type>);// 使用初始化列表创建 unordered_map...
散列器和比较类型包括来自hash和equal声明的**consts**,因此std::unordered_map存储const限定的子对象,并且不可赋值。(The继承与此无关:同样的事情只会发生在类型别名上。
散列器和比较类型包括来自hash和equal声明的**consts**,因此std::unordered_map存储const限定的子对象,并且不可赋值。(The继承与此无关:同样的事情只会发生在类型别名上。
One more thing: we need to know the hash function unordered_map uses before modding by these primes. It turns out to be quite simple: the map uses std::hash, which for integers is simply the identity function. Armed with this knowledge, we can insert lots of multiples of one of these...
问题在于您正在调用initializer_list构造函数。由于initializer_list的工作方式,initializer_list的底层元素是...
This is not a bug report, more of an interesting data point. In the past week I've been trying out absl::flat_hash_map and google::dense_hash_map (and sets) and comparing performance to STL counterparts. The following gist contains bench...
concurrent_hash_map.h:47, from /usr/local/tbb43_20150316oss/include/tbb/tbb.h:42, from source/Group.cpp:17: /usr/local/tbb43_20150316oss/include/tbb/internal/_concurrent_unordered_impl.h:270: error: ‘__TBB_FORWARDING_REF’ has not been declared /usr/l...