| typedef struct { | |
| unsigned b0:1, f1:17, b18:1, b19:1, b20:1, f2:11; | |
| } bf; | |
| typedef union { | |
| bf b; | |
| unsigned w; | |
| } bu; | |
| bu | |
| f(bu i) | |
| { | |
| bu o = i; | |
| if (o.b.b0) | |
| o.b.b18 = 1, | |
| o.b.b20 = 1; | |
| else | |
| o.b.b18 = 0, | |
| o.b.b20 = 0; | |
| return o; | |
| } | |
| main() | |
| { | |
| bu a; | |
| bu r; | |
| a.w = 0x4000000; | |
| a.b.b0 = 0; | |
| r = f(a); | |
| if (a.w != r.w) | |
| abort(); | |
| exit(0); | |
| } |