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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| /* test bitfields | ||
| * DISABLED: win32 win64 linux64 freebsd64 osx64 | ||
| * TEST_OUTPUT: | ||
| --- | ||
| T0 = 1 1 | ||
| T1 = 2 2 | ||
| T2 = 4 4 | ||
| T3 = 8 4 | ||
| T4 = 12 4 | ||
| T5 = 8 4 | ||
| S1 = 4 4 | ||
| S2 = 4 4 | ||
| S3 = 4 4 | ||
| S4 = 4 4 | ||
| S5 = 4 4 | ||
| S6 = 2 2 | ||
| S7 = 4 4 | ||
| S8 = 2 2 | ||
| S8A = 2 2 | ||
| S8B = 2 2 | ||
| S8C = 4 4 | ||
| S9 = 4 2 | ||
| S10 = 0 1 | ||
| S11 = 0 1 | ||
| S12 = 4 4 | ||
| S13 = 8 4 | ||
| S14 = 8 4 | ||
| S15 = 4 4 | ||
| A0 = 12 4 | ||
| S9 = x30200 | ||
| S14 = x300000201 | ||
| S15 = xe01 | ||
| A0 = xf00000001 | ||
| --- | ||
| */ | ||
|
|
||
| int printf(const char *fmt, ...); | ||
| void exit(int); | ||
|
|
||
| void assert(int n, int b) | ||
| { | ||
| if (!b) | ||
| { | ||
| printf("assert fail %d\n", n); | ||
| exit(1); | ||
| } | ||
| } | ||
|
|
||
| /*************************************************************/ | ||
|
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||
| struct T0 { char x:1; }; // 1 1 | ||
| struct T1 { short x:1; }; // 2 2 | ||
| struct T2 { int x:1; }; // 4 4 | ||
| struct T3 { char a,b,c,d; long long x:1; }; // 8 8 | ||
| struct T4 { char a,b,c,d,e,f,g,h; long long x:1; }; // 16 8 | ||
| struct T5 { char a,b,c,d,e,f,g; long long x:1; }; // 8 8 | ||
| struct S1 { long long int f:1; }; // 8 8 | ||
| struct S2 { int x:1; int y:1; }; // 4 4 | ||
| struct S3 { short c; int x:1; unsigned y:1; }; // 4 4 | ||
| struct S4 { int x:1; short y:1; }; // 4 4 | ||
| struct S5 { short x:1; int y:1; }; // 4 4 | ||
| struct S6 { short x:1; short y:1; }; // 2 2 | ||
| struct S7 { short x:1; int y:1; long long z:1; }; // 8 8 | ||
| struct S8 { char a; char b:1; short c:2; }; // 2 2 | ||
| struct S8A { char b:1; short c:2; }; // 2 2 | ||
| struct S8B { char a; short b:1; char c:2; }; // 2 2 | ||
| struct S8C { char a; int b:1; }; // 4 4 | ||
| struct S9 { char a; char b:2; short c:9; }; // 4 2 x30201 | ||
| struct S10 { }; // 0 1 | ||
| struct S11 { int :0; }; // 0 1 | ||
| struct S12 { int :0; int x; }; // 4 4 | ||
| struct S13 { unsigned x:12; unsigned x1:1; unsigned x2:1; unsigned x3:1; unsigned x4:1; int w; }; // 8 4 | ||
| struct S14 { char a; char b:4; int c:30; }; // 8 4 | ||
| struct S15 { char a; char b:2; int c:9; }; // 4 4 xe01 | ||
| struct A0 { int a; long long b:34, c:4; }; // 12 4 (32 bit) 16 8 (64 bit) | ||
|
|
||
| int main() | ||
| { | ||
| printf("T0 = %d %d\n", (int)sizeof(struct T0), (int)_Alignof(struct T0)); | ||
| printf("T1 = %d %d\n", (int)sizeof(struct T1), (int)_Alignof(struct T1)); | ||
| printf("T2 = %d %d\n", (int)sizeof(struct T2), (int)_Alignof(struct T2)); | ||
| printf("T3 = %d %d\n", (int)sizeof(struct T3), (int)_Alignof(struct T3)); | ||
| printf("T4 = %d %d\n", (int)sizeof(struct T4), (int)_Alignof(struct T4)); | ||
| printf("T5 = %d %d\n", (int)sizeof(struct T5), (int)_Alignof(struct T5)); | ||
| printf("S1 = %d %d\n", (int)sizeof(struct S1), (int)_Alignof(struct S1)); | ||
| printf("S2 = %d %d\n", (int)sizeof(struct S2), (int)_Alignof(struct S2)); | ||
| printf("S3 = %d %d\n", (int)sizeof(struct S3), (int)_Alignof(struct S3)); | ||
| printf("S4 = %d %d\n", (int)sizeof(struct S4), (int)_Alignof(struct S4)); | ||
| printf("S5 = %d %d\n", (int)sizeof(struct S5), (int)_Alignof(struct S5)); | ||
| printf("S6 = %d %d\n", (int)sizeof(struct S6), (int)_Alignof(struct S6)); | ||
| printf("S7 = %d %d\n", (int)sizeof(struct S7), (int)_Alignof(struct S7)); | ||
| printf("S8 = %d %d\n", (int)sizeof(struct S8), (int)_Alignof(struct S8)); | ||
| printf("S8A = %d %d\n", (int)sizeof(struct S8A), (int)_Alignof(struct S8A)); | ||
| printf("S8B = %d %d\n", (int)sizeof(struct S8B), (int)_Alignof(struct S8B)); | ||
| printf("S8C = %d %d\n", (int)sizeof(struct S8C), (int)_Alignof(struct S8C)); | ||
| printf("S9 = %d %d\n", (int)sizeof(struct S9), (int)_Alignof(struct S9)); | ||
| printf("S10 = %d %d\n", (int)sizeof(struct S10), (int)_Alignof(struct S10)); | ||
| printf("S11 = %d %d\n", (int)sizeof(struct S11), (int)_Alignof(struct S11)); | ||
| printf("S12 = %d %d\n", (int)sizeof(struct S12), (int)_Alignof(struct S12)); | ||
| printf("S13 = %d %d\n", (int)sizeof(struct S13), (int)_Alignof(struct S13)); | ||
| printf("S14 = %d %d\n", (int)sizeof(struct S14), (int)_Alignof(struct S14)); | ||
| printf("S15 = %d %d\n", (int)sizeof(struct S15), (int)_Alignof(struct S15)); | ||
| printf("A0 = %d %d\n", (int)sizeof(struct A0), (int)_Alignof(struct A0)); | ||
|
|
||
| { | ||
| struct S9 s; | ||
| *(unsigned *)&s = 0; | ||
| s.b = 2; s.c = 3; | ||
| unsigned x = *(unsigned *)&s; | ||
| printf("S9 = x%x\n", x); | ||
| } | ||
| { | ||
| struct S14 s = { 1, 2, 3 }; | ||
| *(long long *)&s = 0; | ||
| s.a = 1; | ||
| s.b = 2; | ||
| s.c = 3; | ||
| unsigned long long v = *(unsigned long long *)&s; | ||
| printf("S14 = x%llx\n", v); | ||
| } | ||
| { | ||
| struct S15 s = { 1,2,3 }; | ||
| *(unsigned *)&s = 0; | ||
| s.a = 1; s.b = 2; s.c = 3; | ||
| unsigned x = *(unsigned *)&s; | ||
| printf("S15 = x%x\n", x); | ||
| } | ||
| { | ||
| struct A0 s; | ||
| *(long long *)&s = 0; | ||
| s.a = 1; s.b = 15; | ||
| long long x = *(long long *)&s; | ||
| printf("A0 = x%llx\n", x); | ||
| } | ||
|
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||
| return 0; | ||
| } | ||
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