Modifying operations

The call stringView.swap(stringView2) swaps the content of the two string views. The methods remove_prefix and remove_suffix are unique to a string view because a string supports neither. remove_prefix shrinks its start forward; remove_suffix shrinks its end backwards.

Non-modifying operations

// string_view.cpp
...
#include <string_view>

... 

using namespace std;
string str = "   A lot of space";
string_view strView = str;
strView.remove_prefix(min(strView.find_first_not_of(" "), strView.size()));
cout << str << endl      // "   A lot of space
     << strView << endl; // "A lot of space"

char arr[] = {'A',' ','l','o','t',' ','o','f',' ',
              's','p','a','c','e','\0', '\0', '\0'};
string_view strView2(arr, sizeof...