c++ create an empty vector
To create an empty vector in C++, you can follow these steps:
Include the necessary header file: You need to include the
header file at the beginning of your code to use the vector container. Declare the vector: Next, declare the vector variable by specifying the datatype of the elements it will hold, followed by the name of the variable. For example, if you want to create an empty vector of integers, you can declare it as follows:
std::vector<int> myVector;
Here, std::vector
is the container class provided by the C++ Standard Library, int
is the datatype of the elements, and myVector
is the name of the variable.
- Initialize the vector: Since you want to create an empty vector, there is no need to initialize it with any elements. The vector will automatically be empty upon declaration.
That's it! You have successfully created an empty vector in C++.