Method string_view substring

src/helpers.cpp:156–162

}

ada_really_inline constexpr std::string_view substring(std::string_view input,
                                                       size_t pos) {
  ADA_ASSERT_TRUE(pos <= input.size());
  // The following is safer but unneeded if we have the above line:
  // return pos > input.size() ? std::string_view() : input.substr(pos);
  return input.substr(pos);
}

ada_really_inline void resize(std::string_view& input, size_t pos) noexcept {
  ADA_ASSERT_TRUE(pos <= input.size());