Poly& Frame::ofaddPoly(const Poly& poly) { origPolys.push_back(poly); return origPolys.back(); } at the push_back(poly).The header where origPolys is declared:prettyprint 复制 class Frame { public: Poly& addPoly(const Poly& poly); protected: vector<Poly> origPolys; }; When...
问使用索引擦除std::vector中的元素EN我认为，如果您只是对索引进行排序，然后从向量中从最高到最低删...
此外small_vector对外暴露API接口,例如push_back、reserve、resize等。 small_vector_base :没有对外提供任何函数接口,类内做的就是配合boost::mpl元编程库在编译期解析模板参数,同时生成boost::totally_ordered1供small_vector继承,精简operator代码。 IntegralSizePolicyBase:负责size/extern/heapifiedCapacity相关的操作。
行为与 std::vector 类似,但是使用了 small buffer optimization(类似于 fbstring 中的 SSO),将指定个数的数据内联在对象中,而不是像 std::vector 直接将对象分配在堆上,避免了 malloc/free 的开销。 small_vector 基本兼容 std::vector 的接口。 small_vector<int,2> vec; vec.push_back(0); // Stored...
vector<int>factors;voidfactorize(uint64_tm){if(is_prime(m)){factors.push_back(m);}elseif(m>1){autog=proper_divisor(m);factorize(g);factorize(m/g);}} And it's always annoying that to store the result, you have to either keep a global vector, or take output vector as an argument...
push_back(val); } // vs. if (std::lock_guard<std::mutex> lk(mx); v.empty()) { v.push_back(val); } Foo gadget(args); switch (auto s = gadget.status()) { case OK: gadget.zip(); break; case Bad: throw BadFoo(s.message()); } // vs. switch (Foo gadget(args); ...
* A vector, but you have to use std::move */ public: TakerQueue(size_tinitCapacity =1) : BaseQueue<T>(initCapacity) { this->m_vec = (T*)malloc(sizeof(T)*(this->m_capacity)); } voidpush_back(T& t){ if(unlikely(this->m_size >=this->m_capacity)) { ...
vector<int> const& v2) { std::vector <int> diff; std::set_difference (std::begin(v1), std::end(v1), std::begin(v2), std::end(v2), std::back_inserter(diff)); return diff; } int main() { std::vector const v1 { 1, 2, 3, 4, 5 }; std::vector const v2 { 0, 2...
Now we can create element containers based on std::vector<...> (slow and preserving the original order of the elements) and std::set<...> (fast by sorting the elements). ... private: /// The array of (single or multiple) pixel manipulation(s). bool _bSorted = false; /// The...
_what's the way to handle sequence_data memory when it contains std::vector?My sequence looks like that:struct SeqData { std::vector<std::vector<PARTICLE>>STORE_P; std::vector<A_Boolean>SET_B; };And here's my code for SequenceSetup:if...