/* $NetBSD: msg_034.c,v 1.6 2022/06/17 18:54:53 rillig Exp $ */ # 3 "msg_034.c" // Test for message: nonportable bit-field type '%s' [34] /* No -g since GCC allows all integer types as bit-fields. */ /* lint1-flags: -S -p -w */ /* * C90 3.5.2.1 allows 'int', 'signed int', 'unsigned int' as bit-field types. * * C99 6.7.2.1 significantly changed the wording of the allowable types for * bit-fields. For example, 6.7.2.1p4 does not mention plain 'int' at all. * The rationale for C99 6.7.2.1 mentions plain int though, and it would have * broken a lot of existing code to disallow plain 'int' as a bit-field type. * Footnote 104 explicitly mentions plain 'int' as well and it even allows * typedef-types for bit-fields. */ struct example { /* expect+1: warning: nonportable bit-field type 'unsigned short' [34] */ unsigned short ushort: 1; /* expect+1: warning: bit-field of type plain 'int' has implementation-defined signedness [344] */ int plain_int: 1; signed int signed_int: 1; unsigned int portable: 1; };