std::default_delete >&&] /opt/compiler-explorer/gcc-trunk-20240513/include/c++/15.0.0/bits/ranges_base.h:499:21: in requirements with '_Tp& __t' [with _Tp = const std::unique_ptr<int,
感谢@Caleth指出了这一点)和现有的std::hash，后者专门用于std::unique_ptr根据原始地址返回哈希(感谢...
error: 'class std::unique_ptr<std::set<long unsigned int> >' has no member named 'size' 下面是我尝试使用 cout 打印的代码片段。 auto current_list = std::make_unique<std::set<uint64_t>>(); std::cout << "Number of elements in current_list is : " << current_list.size(); Run ...
我试图迭代存储的std::unique_ptr<Enemy>的向量,以检查它们是否与player的攻击发生冲突。如果是,我想从向量中删除Enemy。但是当我这样做时,我会得到错误:下面是代码: i->kill(); 浏览3提问于2016-11-12得票数0 2回答 是否有更快的方法从无序集中删除和存储元素?
std::vector<std::unique_ptr<T>>。 (或者,等价地, boost::container::stable_vector)它的缓存局部性不如 std::vector<T>,这使得迭代速度不那么快(指针是连续的,并且指针应该被预取,所以仍然比 std::set更好)。但如果 T 相当大,那么插入和删除就会变得更快,因为只需要复制指针,而不必移动整个实例。最新...
}returnstd::unique_ptr<QueryExpr>(data); } 开发者ID:facebook,项目名称:watchman,代码行数:77,代码来源:name.cpp 示例5: main ▲点赞 1▼ intmain(intargc,char* argv[]){if(MPI_Init(&argc, &argv) != MPI_SUCCESS) {cerr<<"Coudln't initialize MPI."<<endl;abort(); ...
(key))std::cout<<set<<" does contain "<<key<<'\n';elsestd::cout<<set<<" doesn't contain "<<key<<'\n';}std::cout<<'\n';std::string_viewword="element";std::set<char>characters(word.begin(), word.end());std::cout<<"There are "<<characters.size()<<" unique characters...
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_insert_unique(const _Val&) [with _Key = shared_ptr<int>, _Val = shared_ptr<int>, _KeyOfValue = std::_Identity<shared_ptr<int> >, _Compare = std::less<shared_ptr<int> >, _Alloc = std::allocator<shared_ptr<int> ...
};template<typenameT>structDeleter{voidoperator()(T *ptr){deleteptr; } };structA_comp{booloperator()(conststd::unique_ptr<A>& lhs,conststd::unique_ptr<A>& rhs)constreturnintakeintakeintmain()emplaceunique_ptr<A>(newA(40))); s.emplace(std::unique_ptr<A>(newA(10))); ...
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