起初, v = [9, 9, 9, 9, 9, 9] resize(2) 后, v = [9, 9] resize(4) 后, v = [9, 9, 0, 0] resize(6, -1) 后, v = [9, 9, 0, 0, -1, -1] 参数 resize(13): ex.what(): std::bad_alloc 发生异常后, v = [9, 9, 0, 0, -1, -1]参阅max_size [
resize(6, 4); print("在增加大小到 6 之后(初始化器 = 4):", c); } 输出: vector 持有:1 2 3 在增加大小到 5 之后:1 2 3 0 0 在减少大小到 2 之后:1 2 在增加大小到 6 之后(初始化器 = 4):1 2 4 4 4 4缺陷报告下列更改行为的缺陷报告追溯地应用于以前出版的 C++ 标准。
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...
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) ...
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) ...
a std::vector and std::bitset<>::operator. std::runtime_error An exception that theoretically cannot be detected by reading the code. std::overflow_error This is thrown if a mathematical overflow occurs. std::range_error This is occurred when you try to store a value which is out of ...
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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...
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) ...
iterator(LDVector< T > *v) iterator(LDVector< T > *v, int idx) iterator&operator=(constiterator&ite) iterator&operator++() iterator&operator--() iteratoroperator++(int) iteratoroperator--(int) T &operator*() const booloperator!=(constiterator&ite) const ...