How does c++ std::vector work? - Stack Overflow
Jul 2, 2010 · Using std::vector allows the use of other Standard Template Library components such as algorithms so using std::vector comes with quite a few advantages over a C style …
Delete all items from a c++ std::vector - Stack Overflow
-1 If your vector look like this std::vector<MyClass*> vecType_pt you have to explicitly release memory ,Or if your vector look like : std::vector<MyClass> vecType_obj , constructor will be …
std::vector versus std::array in C++ - Stack Overflow
Dec 12, 2010 · std::vector is a template class that encapsulate a dynamic array 1, stored in the heap, that grows and shrinks automatically if elements are added or removed. It provides all …
c++ - std::vector: vec.data () or &vec [0] - Stack Overflow
May 24, 2012 · 1 Before C++11's std::array I would say that std::vector was the most common container to be used instead of the C-style array. The [] operator usually implies constant time …
When should I use a std::inplace_vector instead of a std::vector?
Oct 29, 2024 · A std::vector (or anything else which requires dynamic allocation) is not usable within a constexpr expression. The inplace storage of std::inplace_vector allows it to be used …
How is C++ std::vector implemented? - Stack Overflow
Apr 26, 2013 · I have been using std::vector a lot, and recently I asked myself this question: "How is std::vector implemented?" I had two alternatives: 1) Linked list, and then making the API feel …
c++ - Appending a vector to a vector - Stack Overflow
Note that this is likely to be less efficient than using std::vector<>::insert(), because std::copy() can't reserve enough space before-hand (it doesn't have access to the vector itself, only to an …
c++ - What is the difference between std::array and std::vector?
What is the difference between std::array and std::vector? When do you use one over other? I have always used and considered std:vector as an C++ way of using C arrays, so what is the …
c++ - What is the use of const std::vector? - Stack Overflow
Aug 23, 2021 · By using std::vector the compiler can work that out for your dynamically. This matters in maintenance situations as it prevents errors. You only add/remove a string from the …
c++ - sizeof () std::vector - Stack Overflow
With respect to the practically correct: the "best" approach to implementing std::vector<T> is to have the actually object store a pointer to T which is a pointer to the start of the elements and …