Modern C++ Programming Cookbook

How to do it...

To assign values to a range, use any of the following standard algorithms:

• std::fill() to assign a value to all the elements of a range; the range is defined by a first and last forward iterator:

        std::vector<int> v(5);        std::fill(v.begin(), v.end(), 42);        // v = {42, 42, 42, 42, 42}

• std::fill_n() to assign values to a number of elements of a range; the range is defined by a first forward iterator and a counter that indicates how many elements should be assigned the specified value:

        std::vector<int> v(10);        std::fill_n(v.begin(), 5, 42);        // v = {42, 42, 42, 42, 42, 0, 0, 0, 0, 0}

• std::generate() to assign the value returned by a function to the elements of a range; the range is defined by a first and last forward iterator, ...