重载(1) 中,若 T 的移动构造函数不是 noexcept 且T 不可复制插入 (CopyInsertable) 到*this ,则 vector 将使用会抛出的移动构造函数。若它抛出,则抛弃保证且效果未指定。 (C++11 起)注意若不想要重载 (1) 中的值初始化,例如元素是非类类型且不需要清零,则可以提供定制的 Allocator::construct 避免。
insert、emplacevector 更改容量时全部失效。否则只有在或于插入点后者(包括end())。 resizevector 更改容量时全部失效。否则只有end()与被擦除元素。 pop_back被擦除元素和end()。 成员类型 成员类型定义 value_typeT allocator_typeAllocator size_type无符号整数类型(通常是std::size_t) ...
resizeIf the vector changed capacity, all of them. If not, onlyend()and any elements erased. pop_backThe element erased andend(). Member types Member typeDefinition value_typeT allocator_typeAllocator size_typeUnsigned integer type (usuallystd::size_t) ...
std::vector voidresize(size_type count); (1)(constexpr since C++20) voidresize(size_type count,constvalue_type&value); (2)(constexpr since C++20) Resizes the container to containcountelements, does nothing ifcount==size(). If the current size is greater thancount, the container is redu...
vector::insert vector::emplace (C++11) vector::erase vector::push_back vector::emplace_back (C++11) vector::pop_back vector::resize vector::swap std::vector<bool> specific vector<bool>::flip vector<bool>::swap Non-member functions operator==operator!=operator<operator>operator<=operator>=...
inplace_vector(C++26) hive(C++26) map−multimap−set−multiset unordered_map(C++11) unordered_multimap(C++11) unordered_set(C++11) unordered_multiset(C++11) Container adaptors span(C++20)−mdspan(C++23) Iterators library Ranges library(C++20) ...
#include<vector>usingnamespacestd;vector<int> numbers1;//an empty vector of intsvector<int>numbers2(10);//a vector of 10 intsvector<int>numbers3(10,2);//a vector of 10 ints, each initialized to 2vector<int> numbers4 {10,20,30,40};//a vector initialized with an initialization lis...
voidresize(int size, T value=T()) voidupdateSize(int size, T value=T(), bool callPlacementNew=true) voidprepare_capacity(int newsize) voidinsert(iteratorpos,iteratorstart,iteratorend, bool callPlacementNew=true) voidassign(int size, T value=T(), bool callPlacementNew=true) ...
// into a vector of RefRecords. The input streams are reset once // it's done. writeU<int32_t>(fout3, 1, bigEndian); // endianness sentinel bool color = parms.color; if(color) { parms.color = false; // Make sure the .3.gEbwt_ext and .4.gEbwt_ext files contain // nucle...
true; } void VBOMesh::UpdateVertexPosition(const FbxMesh * pMesh, const FbxVector4 * pVertices) const { // Convert to the sequence with datain GPU. float lVertices = NULL; int lVertexCount = 0; if (mAllByControlPoint) { lVertexCount = pMesh->PointsCount(); l...