cplusplus reference vector - PrivacyWall

https://cplusplus.com/reference/vector/vector/

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vector - C++ Users

Aliased as member type vector::value_type. Alloc Type of the allocator object used to define the storage allocation model. By default, the allocator class template is used, which defines the simplest memory allocation model and is value-independent. Aliased as member type vector::allocator_type. Member types

https://en.cppreference.com/w/cpp/container/vector

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std::vector - cppreference.com

Except for the std::vector<bool> partial specialization, the elements are stored contiguously, which means that elements can be accessed not only through iterators, but also using offsets to regular pointers to elements. This means that a pointer to an element of a vector may be passed to any function that expects a pointer to an element of an array.

https://www.w3schools.com/CPP/cpp_ref_vector.asp

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C++ vector Library Reference (vector functions) - W3Schools

Fills a vector with multiple values: at() Returns an indexed element from a vector: back() Returns the last element of a vector: begin() Returns an iterator pointing to the beginning of a vector: capacity() Returns the number of elements that a vector's reserved memory is able to store: clear() Removes all of the contents of a vector: data()

https://cpp-lang.net/docs/std/containers/arrays/vector/

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std::vector reference | C++ Programming Language

The storage of the vector is handled automatically, being expanded and contracted as needed. Vectors usually occupy more space than static arrays, because more memory is allocated to handle future growth. This way a vector does not need to reallocate each time an element is inserted, but only when the additional memory is exhausted.

https://www.geeksforgeeks.org/vector-in-cpp-stl/

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Vector in C++ STL - GeeksforGeeks

In C++, the vector front() is a built-in function used to retrieve the first element of the vector. It provides a reference to the first element, allowing you to read or modify it directly.Letâ€™s take a quick look at a simple example that uses the vector front() method:C++#include <bits/stdc++.h . 2 min read. Vector push_back() in C++ STL In C++, the vector push_back() is a built-in ...

https://legacy.cplusplus.com/reference/vector/vector/erase/

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vector::erase - C++ Reference - cplusplus.com

Removes from the vector either a single element (position) or a range of elements ([first,last)). This effectively reduces the container size by the number of elements removed, which are destroyed. Because vectors use an array as their underlying storage, erasing elements in positions other than the vector end causes the container to relocate all the elements after the segment erased to their ...

https://cplusplus.com/reference/vector/vector/vector/

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vector - C++ Users

Parameters alloc Allocator object. The container keeps and uses an internal copy of this allocator. Member type allocator_type is the internal allocator type used by the container, defined in vector as an alias of its second template parameter (Alloc). If allocator_type is an instantiation of the default allocator (which has no state), this is not relevant.

https://legacy.cplusplus.com/reference/vector/vector/empty/

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vector::empty - C++ Reference - cplusplus.com

Reference <vector> vector; empty; public member function <vector> std:: vector::empty. bool empty() const; bool empty() const noexcept; Test whether vector is empty. Returns whether the vector is empty (i.e. whether its size is 0). This function does not modify the container in any way. To clear the content of a vector, see vector::clear. Parameters none Return Value true if the container size ...

https://legacy.cplusplus.com/reference/vector/vector/~vector/

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vector::~vector - C++ Reference - cplusplus.com

Reference <vector> vector ~vector; public member function <vector> std:: vector::~vector ~vector(); Vector destructor. Destroys the container object. This destroys all container elements, and deallocates all the storage capacity allocated by the vector using its allocator. This calls allocator_traits::destroy on each of the contained elements, and deallocates all the storage capacity allocated ...

https://cppreference.cn/w/cpp/container/vector

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std::vector - cppreference.cn - C++参考手册

这意味着可以将指向 vector 元素的指针传递给任何期望指向数组元素的指针的函数。 vector 的存储是自动处理的，根据需要扩展。Vectors 通常比静态数组占用更多空间，因为分配了更多内存来处理未来的增长。这样，vector 不需要每次插入元素时都重新分配，而仅在额外内存耗尽时才重新分配。可以 ...

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