1 // { dg-options "-std=c++17 -Wall" } 2 3 #include <cstddef> 4 white_space(std::byte x)5bool white_space(std::byte x) { 6 switch (x) { 7 case std::byte{' '}: case std::byte{'\t'}: case std::byte{'\v'}: 8 case std::byte{'\f'}: case std::byte{'\n'}: 9 return true; 10 default: 11 return false; 12 } 13 } 14