等价于std::upper_bound(first, last, value,std::less{})。 (C++20 起) 2)通过comp确定顺序: 返回[first,last)中首个使得bool(comp(value,*iter))是true的迭代器iter,或者在不存在这种iter的情况下返回last。 如果[first,last)的元素elem没有按表达式bool(comp(value, elem))划分,那么行为未定义。
upper_bound Returns an iterator pointing to the first element in the range [first,last) which compares greater than val. Return value An iterator to the upper bound position for val in the range. If no element in the range compares greater than val, the function returns last. lower_bound ...
map.upper_bound(keyElem); // 返回第一个key>keyElem元素的迭代器。 例如: mapStu是用map<int,string>声明的容器,已包含{1,"小李"}{3,"小张"}{5,"小王"}{7,"小赵"}{9,"小陈"}元素。 map<int,string>::iterator it;it=mapStu.lower_bound(5);//it->first==5 it->second=="小王"it=map...
时间复杂度是 O(logn) lower_bound()/upper_bound()unordered_set, unordered_map, unordered_multiset, unordered_multimap, 哈希表 和上面类似,增删改查的时间复杂度是 O(1) 不支持 lower_bound()/upper_bound(), 迭代器的++,--bitset, 圧位 bitset<10000> s; ~, &, |, ^ >>, << ==, != []...
const_iterator upper_bound( const K& x ) const; (4) (C++14 起) (C++26 起为 constexpr) 1,2) 返回指向首个大于 key 的元素的迭代器。3,4) 返回指向首个大于 x 的元素的迭代器。此重载只有在 Compare 透明时才会参与重载决议。它允许调用此函数时无需构造 Key 的实例。参数...
lower_bound() 返回键值>=给定元素的第一个位置 max_size() 返回可以容纳的最大元素个数 rbegin() 返回一个指向map尾部的逆向迭代器 rend() 返回一个指向map头部的逆向迭代器 size() 返回map中元素的个数 swap() 交换两个map upper_bound() 返回键值>给定元素的第一个位置 ...
if(work.size()<(size_t)nelements*4){21.work.resize(nelements*4);// upper bound on size22.}23.new_data=work.data();24.constint64_tn_per_row=tensor->ne[0];25.constint64_tnrows=tensor->ne[1];26.staticconstint64_tmin_chunk_size=32*512;27.constint64_tchunk_size=(n_per_row>=...
If we know an upper bound of the minimum distance of the code, then we have a good indication about the capabilities and the limitations of the code. One of the classes of the error correcting codes with the best performance is that of turbo codes. For such codes, establishing upper ...
When printing within a range views pipeline using the IC_FV function, all the lower_bound, upper_bound, and index values must be positive.Tuple like typesA std::pair<T1, T2> or std::tuple<Ts...> typed variables will print all of its elements.The code:...
param<double>("imu_acceleration_edge_robust_kernel_size", 1.0)); } updated = true; } auto remove_loc = std::upper_bound(imu_queue.begin(), imu_queue.end(), keyframes.back()->stamp, [=](const ros::Time& stamp, const sensor_msgs::ImuConstPtr& imu) { return stamp < imu->header...