5 lines · c
1// RUN: %clang_cc1 %s -std=c2x -Wpre-c2x-compat -pedantic -fsyntax-only -verify2 3int digit_seps = 123'456; // expected-warning {{digit separators are incompatible with C standards before C23}}4unsigned char u8_char = u8'x'; // expected-warning {{unicode literals are incompatible with C standards before C23}}5