std::basic_string_view::remove_suffix(3)

NAME
std::basic_string_view::remove_suffix - std::basic_string_view::remove_suffix

Synopsis
   constexpr void remove_suffix( size_type n ); (since C++17)
   Moves the end of the view back by n characters.
   The behavior is undefined if n > size().

Parameters
   n - number of characters to remove from the end of the view

Return value
   (none)

Complexity
   Constant.

Example
// Run this code
 #include <iostream>
 #include <string_view>
 int main()
 {
     char arr[] = {'a', 'b', 'c', 'd', '\0', '\0', '\0'};
     std::string_view v(arr, sizeof arr);
     auto trim_pos = v.find('\0');
     if (trim_pos != v.npos)
         v.remove_suffix(v.size() - trim_pos);
     std::cout << "Array: '" << arr << "', size=" << sizeof arr << '\n'
               << "View : '" << v << "', size=" << v.size() << '\n';
 }

Output:
 Array: 'abcd', size=7
 View : 'abcd', size=4

See also
   remove_prefix shrinks the view by moving its start forward
                 (public member function)