6_ways_to_initialize_vector.cpp

#include <iostream>
#include <vector>

int main(void) {
    // Create and init a vector
    // 1. vector<int> variable; variable.push_back()
    std::vector<int> lucky_numbers; 
    lucky_numbers.push_back(1);
    lucky_numbers.push_back(100);
    
    // 2. Initialize integer vectors with an initial value
    std::vector<int> vecOfInts(5);
    
    // 3. Initialize vector to 5 string obejcts with value "Hi"
    std::vector<std::string> vecOfStr(5, "Hi");

    // 4. Initialize vector with an array
    std::string arr[] = {"first", "second", "third", "fourth"};
    
    // 5. Initialize vector with a string array
    std::vector<std::string> vecOfStr(arr, arr + sizeof(arr)/sizeof(std::string));
    
    // 6. Initialize vector with std::list
    std::list<std::string> listOfStr;
    listOfStr.push_back("first");
    listOfStr.push_back("sec")
    std::vector(std::string) vecOfStr(listOfStr.begin(), listOfStr.end());
    
    for (std::string str : vecOfStr)
    {
        std::cout << str << std::endl;
    }
    
    return 0;
}