/* test bitfields for Microsoft C * REQUIRED_ARGS: -preview=bitfields * DISABLED: win32 linux freebsd openbsd osx * RUN_OUTPUT: --- DM | MS | P32 | P64 T0 = 1 1 || 1 1 | 1 1 | 1 1 | 1 1 T1 = 2 2 || 2 2 | 2 2 | 2 2 | 2 2 T2 = 4 4 || 4 4 | 4 4 | 4 4 | 4 4 T3 = 16 8 || 16 8 | 16 8 | 8 4 | 8 8 T4 = 16 8 || 16 8 | 16 8 | 12 4 | 16 8 T5 = 16 8 || 16 8 | 16 8 | 8 4 | 8 8 S1 = 8 8 || 8 8 | 8 8 | 4 4 | 8 8 S2 = 4 4 || 4 4 | 4 4 | 4 4 | 4 4 S3 = 8 4 || 8 4 | 8 4 | 4 4 | 4 4 S4 = 8 4 || 8 4 | 8 4 | 4 4 | 4 4 S5 = 8 4 || 8 4 | 8 4 | 4 4 | 4 4 S6 = 2 2 || 2 2 | 2 2 | 2 2 | 2 2 S7 = 16 8 || 16 8 | 16 8 | 4 4 | 8 8 S8 = 4 2 || 4 2 | 4 2 | 2 2 | 2 2 S8A = 4 2 || 4 2 | 4 2 | 2 2 | 2 2 S8B = 6 2 || 6 2 | 6 2 | 2 2 | 2 2 S8C = 8 4 || 8 4 | 8 4 | 4 4 | 4 4 S9 = 4 2 || 4 2 | 4 2 | 4 2 | 4 2 S11 = 1 1 || 0 0 | 4 1 | 0 1 | 0 1 S12 = 4 4 || 4 4 | 4 4 | 4 4 | 4 4 S13 = 8 4 || 8 4 | 8 4 | 8 4 | 8 4 S14 = 8 4 || 8 4 | 8 4 | 8 4 | 8 4 S15 = 8 4 || 8 4 | 8 4 | 4 4 | 4 4 S16 = 4 4 || 0 0 | 4 4 | 4 1 | 4 1 S17 = 4 4 || 4 4 | 4 4 | 4 4 | 4 4 S18 = 2 1 || 2 1 | 2 1 | 5 1 | 9 1 A0 = 16 8 || 16 8 | 16 8 | 12 4 | 16 8 A1 = 12 4 || * * | 12 4 A2 = 12 4 || * * | 12 4 A3 = 16 4 || * * | 16 4 A4 = 12 4 || * * | 12 4 A5 = 2 1 || * * | 2 1 A6 = 4 2 || * * | 4 2 A7 = 16 4 || * * | 16 4 A8 = 12 4 || * * | 12 4 A9 = 32 8 || * * | 32 8 A10 = 4 2 || * * | 4 2 A11 = 16 4 || * * | 16 4 S9 = x30200 S14 = x300000201 S15 = x201 S18 = 1 A0 = x1 --- */ import core.stdc.stdio; int is64bit() { return size_t.sizeof == 8; } // otherwise assume 32 bit /*************************************************************/ struct T0 { ubyte x:1; }; // struct T1 { short x:1; }; // struct T2 { int x:1; }; // struct T3 { ubyte a,b,c,d; long x:1; }; // struct T4 { ubyte a,b,c,d,e,f,g,h; long x:1; }; // struct T5 { ubyte a,b,c,d,e,f,g; long x:1; }; // struct S1 { long f:1; }; // struct S2 { int x:1; int y:1; }; // struct S3 { short c; int x:1; uint y:1; }; // struct S4 { int x:1; short y:1; }; // struct S5 { short x:1; int y:1; }; // struct S6 { short x:1; short y:1; }; // struct S7 { short x:1; int y:1; long z:1; }; // struct S8 { ubyte a; ubyte b:1; short c:2; }; // struct S8A { ubyte b:1; short c:2; }; // struct S8B { ubyte a; short b:1; ubyte c:2; }; // struct S8C { ubyte a; int b:1; }; // struct S9 { ubyte a; ubyte b:2; short c:9; }; // //struct S10 { }; // struct S11 { int :0; }; // differs from C in that C sizeof is 4 struct S12 { int :0; int x; }; // struct S13 { uint x:12; uint x1:1; uint x2:1; uint x3:1; uint x4:1; int w; }; // struct S14 { ubyte a; ubyte b:4; int c:30; }; // struct S15 { ubyte a; ubyte b:2; int c:9; }; // struct S16 { int :32; }; // struct S17 { int a:32; }; // struct S18 { ubyte a; long :0; ubyte b; }; // struct A0 { int a; long b:34, c:4; }; // struct A1 { int a; uint b:11; int c; }; // struct A2 { int a; uint b:11, c:5, d:16; // int e; }; struct A3 { int a; uint b:11, c:5, :0, d:16; // int e; }; struct A4 { int a:8; short b:7; // uint c:29; }; struct A5 { ubyte a:7, b:2; }; // struct A6 { ubyte a:7; short b:2; }; // struct A7 { short a:8; int b:16; int c; // ubyte d:7; }; struct A8 { short a:8; int b:16; int :0; // ubyte c:7; }; struct A9 { ushort a:8; int b:16; // uint c:29; long d:9; uint e:2, f:31; }; struct A10 { ushort a:8; ubyte b; }; // struct A11 { ubyte a; int b:5, c:11, :0, d:8; // struct { int ee:8; } }; int main() { /* MS produces identical results for 32 and 64 bit compiles, * DM is 32 bit only */ printf(" DM | MS | P32 | P64\n"); printf("T0 = %2d %d || 1 1 | 1 1 | 1 1 | 1 1\n", cast(int)T0.sizeof, cast(int)T0.alignof); printf("T1 = %2d %d || 2 2 | 2 2 | 2 2 | 2 2\n", cast(int)T1.sizeof, cast(int)T1.alignof); printf("T2 = %2d %d || 4 4 | 4 4 | 4 4 | 4 4\n", cast(int)T2.sizeof, cast(int)T2.alignof); printf("T3 = %2d %d || 16 8 | 16 8 | 8 4 | 8 8\n", cast(int)T3.sizeof, cast(int)T3.alignof); printf("T4 = %2d %d || 16 8 | 16 8 | 12 4 | 16 8\n", cast(int)T4.sizeof, cast(int)T4.alignof); printf("T5 = %2d %d || 16 8 | 16 8 | 8 4 | 8 8\n", cast(int)T5.sizeof, cast(int)T5.alignof); printf("S1 = %2d %d || 8 8 | 8 8 | 4 4 | 8 8\n", cast(int)S1.sizeof, cast(int)S1.alignof); printf("S2 = %2d %d || 4 4 | 4 4 | 4 4 | 4 4\n", cast(int)S2.sizeof, cast(int)S2.alignof); printf("S3 = %2d %d || 8 4 | 8 4 | 4 4 | 4 4\n", cast(int)S3.sizeof, cast(int)S3.alignof); printf("S4 = %2d %d || 8 4 | 8 4 | 4 4 | 4 4\n", cast(int)S4.sizeof, cast(int)S4.alignof); printf("S5 = %2d %d || 8 4 | 8 4 | 4 4 | 4 4\n", cast(int)S5.sizeof, cast(int)S5.alignof); printf("S6 = %2d %d || 2 2 | 2 2 | 2 2 | 2 2\n", cast(int)S6.sizeof, cast(int)S6.alignof); printf("S7 = %2d %d || 16 8 | 16 8 | 4 4 | 8 8\n", cast(int)S7.sizeof, cast(int)S7.alignof); printf("S8 = %2d %d || 4 2 | 4 2 | 2 2 | 2 2\n", cast(int)S8.sizeof, cast(int)S8.alignof); printf("S8A = %2d %d || 4 2 | 4 2 | 2 2 | 2 2\n", cast(int)S8A.sizeof, cast(int)S8A.alignof); printf("S8B = %2d %d || 6 2 | 6 2 | 2 2 | 2 2\n", cast(int)S8B.sizeof, cast(int)S8B.alignof); printf("S8C = %2d %d || 8 4 | 8 4 | 4 4 | 4 4\n", cast(int)S8C.sizeof, cast(int)S8C.alignof); printf("S9 = %2d %d || 4 2 | 4 2 | 4 2 | 4 2\n", cast(int)S9.sizeof, cast(int)S9.alignof); // printf("S10 = %2d %d || 0 0 | * * | 0 1 | 0 1\n", cast(int)S10.sizeof, cast(int)S10.alignof); // MS doesn't compile printf("S11 = %2d %d || 0 0 | 4 1 | 0 1 | 0 1\n", cast(int)S11.sizeof, cast(int)S11.alignof); printf("S12 = %2d %d || 4 4 | 4 4 | 4 4 | 4 4\n", cast(int)S12.sizeof, cast(int)S12.alignof); printf("S13 = %2d %d || 8 4 | 8 4 | 8 4 | 8 4\n", cast(int)S13.sizeof, cast(int)S13.alignof); printf("S14 = %2d %d || 8 4 | 8 4 | 8 4 | 8 4\n", cast(int)S14.sizeof, cast(int)S14.alignof); printf("S15 = %2d %d || 8 4 | 8 4 | 4 4 | 4 4\n", cast(int)S15.sizeof, cast(int)S15.alignof); printf("S16 = %2d %d || 0 0 | 4 4 | 4 1 | 4 1\n", cast(int)S16.sizeof, cast(int)S16.alignof); printf("S17 = %2d %d || 4 4 | 4 4 | 4 4 | 4 4\n", cast(int)S17.sizeof, cast(int)S17.alignof); printf("S18 = %2d %d || 2 1 | 2 1 | 5 1 | 9 1\n", cast(int)S18.sizeof, cast(int)S18.alignof); printf("A0 = %2d %d || 16 8 | 16 8 | 12 4 | 16 8\n", cast(int)A0.sizeof, cast(int)A0.alignof); printf("A1 = %2d %d || * * | 12 4\n", cast(int)A1.sizeof, cast(int)A1.alignof); printf("A2 = %2d %d || * * | 12 4\n", cast(int)A2.sizeof, cast(int)A2.alignof); printf("A3 = %2d %d || * * | 16 4\n", cast(int)A3.sizeof, cast(int)A3.alignof); printf("A4 = %2d %d || * * | 12 4\n", cast(int)A4.sizeof, cast(int)A4.alignof); printf("A5 = %2d %d || * * | 2 1\n", cast(int)A5.sizeof, cast(int)A5.alignof); printf("A6 = %2d %d || * * | 4 2\n", cast(int)A6.sizeof, cast(int)A6.alignof); printf("A7 = %2d %d || * * | 16 4\n", cast(int)A7.sizeof, cast(int)A7.alignof); printf("A8 = %2d %d || * * | 12 4\n", cast(int)A8.sizeof, cast(int)A8.alignof); printf("A9 = %2d %d || * * | 32 8\n", cast(int)A9.sizeof, cast(int)A9.alignof); printf("A10 = %2d %d || * * | 4 2\n", cast(int)A10.sizeof, cast(int)A10.alignof); printf("A11 = %2d %d || * * | 16 4\n", cast(int)A11.sizeof, cast(int)A11.alignof); { S9 s; uint x; *cast(uint *)&s = 0; s.b = 2; s.c = 3; x = *cast(uint *)&s; printf("S9 = x%x\n", x); } { S14 s = { 1, 2, 3 }; ulong v; *cast(long *)&s = 0; s.a = 1; s.b = 2; s.c = 3; v = *cast(ulong *)&s; printf("S14 = x%llx\n", v); } { S15 s = { 1,2,3 }; uint x; *cast(uint *)&s = 0; s.a = 1; s.b = 2; s.c = 3; x = *cast(uint *)&s; printf("S15 = x%x\n", x); } { S18 s; printf("S18 = %d\n", cast(int)(&s.b - &s.a)); } { A0 s; long x; *cast(long *)&s = 0; s.a = 1; s.b = 15; x = *cast(long *)&s; printf("A0 = x%llx\n", x); } return 0; }