1 /* Check if the @defs() construct preserves the correct
2 layout of bitfields. */
3 /* Contributed by Ziemowit Laski <zlaski@apple.com>. */
5 /* { dg-options "-Wpadded" } */
7 #include "../objc-obj-c++-shared/TestsuiteObject.m"
12 #define CHECK_IF(expr) if(!(expr)) abort()
14 enum Enum { one, two, three, four };
16 @interface Base: TestsuiteObject {
21 } /* { dg-warning "padding struct size to alignment boundary" } */
24 @interface Derived: Base {
28 } /* { dg-line interface_Derived } */
31 /* Note that the semicolon after @defs(...) is optional. */
33 typedef struct { @defs(Base) } Base_t; /* { dg-warning "padding struct size to alignment boundary" } */
34 typedef struct { @defs(Derived); } Derived_t; /* { dg-line Derived_t_def } */
38 CHECK_IF(sizeof(Base_t) == sizeof(Base));
39 CHECK_IF(sizeof(Derived_t) == sizeof(Derived));
41 #ifdef __NEXT_RUNTIME__
42 CHECK_IF(!strcmp(@encode(Base), "{Base=#b2b3b4b5}"));
43 CHECK_IF(!strcmp(@encode(Derived), "{Derived=#b2b3b4b5b5b4b3}"));
45 CHECK_IF(!strcmp(@encode(Base_t), "{?=#b2b3b4b5}"));
46 CHECK_IF(!strcmp(@encode(Derived_t), "{?=#b2b3b4b5b5b4b3}"));
47 #endif /* __NEXT_RUNTIME__ */
52 /* { dg-prune-output "In file included from" } Ignore this message. */
53 /* { dg-bogus "padding struct to align" "PR23610" { target *-*-* } 0 } */
55 /* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } interface_Derived } */
56 /* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } Derived_t_def } */