You'll also need to ensure you've implemented a suitable operator==() for your object, if the default one isn't sufficient for a deep equality test. How to check if vector contains specified element in c++ To check if an element is present in a vector, use a loop to iterate through all the elements
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If the target element is found at any index, it means the element is present.
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.
Learn methods to check if a c++ vector contains an element, including loops, std::find, and binary search, with code examples. Master the art of c++ with our guide on how to check if a vector contains an element c++ Discover efficient methods and practical tips for seamless coding. This article demonstrates multiple methods of how you can check if an element exists in a c++ vector
The find method is a part of the stl algorithm library It can check if the given element exists in a particular range The function searches for a factor thatโs equal to the third parameter passed by the user. As of c++11, this question is no longer a duplicate, as std::any_of now gives you a specific way to return true if a container contains a match, instead of using std::find to return a matching element
Thanks to @colddie for the original correct answer to this.
Learn how to find whether a vector contains a particular value in an optimal way Contains algorithm for both sorted and unsorted in c++. If you're doing this very often, you might want to consider using std::set or std::unordered_set instead They support what you're asking for much more directly.
