std::vector::emplace 之前已经对emplace_back进行了讨论,其实还有一个方法叫emplace。 我想说的就是,emplace之于emplace_back就像insert之于push_back。 看英文描述就直观: emplace:Construct and insert element emplace_back:Construct and insert element at the end 如何使用: 1 2 3 4 5 6 7 8 9 10 11 ...
IntSet s1; s1.insert(4); s1.insert(3); s1.insert(5); s1.insert(1); s1.insert(6); s1.insert(2); s1.insert(5); //the inserted element that has the same value with a element existed is emitted copy(s1.begin(),s1.end(),ostream_iterator<int>(cout," ")); cout << endl << ...
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...
...容器的emplace成员 emplace操作是C++11新特性,新引入的的三个成员emplace_front、emplace 和 emplace_back。...这些操作构造而不是拷贝元素到容器中,这些操作分别对应push_front、insert 和push_back,允许我们将元素放在容器头部、一个指定的位置和容器尾部。 --- ...
The iterator debugging feature has been taught to properly unwrapstd::move_iterator. For example,std::copy(std::move_iterator<std::vector<int>::iterator>, std::move_iterator<std::vector<int>::iterator>, int*)can now engage thememcpyfast path. ...
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...
std::vector<Argument> createArgumentVector(c10::ArrayRef<ArgumentDef> args) { std::vector<Argument> result; result.reserve(args.size()); for (const auto i : c10::irange(args.size())) { // Arguments are named "_<index>" result.emplace_back(fastToString(i), (*args[i].getFakeTypeFn...
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...
Provide feedback We read every piece of feedback, and take your input very seriously. Include my email address so I can be contacted Cancel Submit feedback Saved searches Use saved searches to filter your results more quickly Cancel Create saved search Sign in Sign up {...
"performance-inefficient-vector-operation", "performance-move-const-arg", "performance-move-constructor-init", "performance-no-automatic-move", "performance-noexcept-move-constructor", "performance-trivially-destructible", "performance-type-promotion-in-math-fn", "performance-unnecessary-copy-initialization...