#include <some_header> #include "another_header.hpp" # define A_MACRO value #define stringize(hello) #hello // No escape /* No escape */ /* No escape * with newlines */ // In Header: <boost/optional/optional.hpp> /* In Header: <boost/optional/optional.hpp> */ /* Multiple escapes: italic * underlinebold */ /* Token pasting: */ a##b A badly formed comment: /* Oh dear A badly formed comment with an escape: /* Oh dear bold Just some code: int main() { constexpr char32_t x = 'a'; const auto y = x - ' '; }