Method substr

include/jwt/string_view.hpp:205–214

NOTE: Does not throw

  // NOTE: Does not throw
  basic_string_view substr(size_type pos, size_type n = npos) const noexcept
  {
    assert (pos < len_ && "Start position should be less than length of the view");
    assert (n == npos ? 1 : (n - pos) < len_ && 
        "Substring length asked for is more than the view length");

    if (n == npos) n = len_;

    return basic_string_view{data_ + pos, n};
  }

  /// Comparison Member Functions
  int compare(const basic_string_view& other) const noexcept