18 lines · c
1// RUN: %clang_cc1 -verify %s2 3/* WG14 N1356: Yes4 * _Bool bit-fields5 */6 7// C does not allow the bit-width of a bit-field to exceed the width of the8// bit-field type, and _Bool is only required to be able to store 0 and 19// (and thus is implicitly unsigned), which only requires a single bit.10#if __BOOL_WIDTH__ < __CHAR_BIT__11struct S {12 _Bool b : __CHAR_BIT__; // expected-error {{width of bit-field 'b' (8 bits) exceeds the width of its type (1 bit)}}13};14#else15// expected-no-diagnostics16#endif17 18