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185 lines
7.3 KiB
D
185 lines
7.3 KiB
D
/* test bitfields
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* REQUIRED_ARGS: -preview=bitfields
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* DISABLED: win32 win64 linux64 freebsd64 openbsd64 osx64
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* RUN_OUTPUT:
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---
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T0 = 1 1 | 1 1
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T1 = 2 2 | 2 2
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T2 = 4 4 | 4 4
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T3 = 8 4 | 8 4
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T4 = 12 4 | 12 4
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T5 = 8 4 | 8 4
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S1 = 4 4 | 8 8
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S2 = 4 4 | 4 4
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S3 = 4 4 | 4 4
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S4 = 4 4 | 4 4
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S5 = 4 4 | 4 4
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S6 = 2 2 | 2 2
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S7 = 4 4 | 8 8
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S8 = 2 2 | 2 2
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S8A = 2 2 | 2 2
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S8B = 2 2 | 2 2
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S8C = 4 4 | 4 4
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S9 = 4 2 | 4 2
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S10 = 1 1 | 0 1
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S11 = 1 1 | 0 1
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S12 = 4 4 | 4 4
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S13 = 8 4 | 8 4
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S14 = 8 4 | 8 4
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S15 = 4 4 | 4 4
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S16 = 4 1 | 4 1
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S17 = 4 4 | 4 4
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S18 = 5 1 | 5 1
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A0 = 12 4 | 12 4
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A1 = 12 4 | 12 4
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A2 = 12 4 | 12 4
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A3 = 16 4 | 16 4
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A4 = 8 4 | 8 4
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A5 = 2 1 | 2 1
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A6 = 2 2 | 2 2
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A7 = 12 4 | 12 4
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A8 = 8 4 | 8 4
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A9 = 16 4 | 16 4
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A10 = 2 2 | 2 2
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A11 = 12 4 | 12 4
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S9 = x30200
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S14 = x300000201
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S15 = xe01
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S18 = 4 should be 4
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A0 = xf00000001
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---
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*/
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import core.stdc.stdio;
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int is64bit() { return size_t.sizeof == 8; } // otherwise assume 32 bit
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/*************************************************************/
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struct T0 { ubyte x:1; }; // 1 1
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struct T1 { short x:1; }; // 2 2
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struct T2 { int x:1; }; // 4 4
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struct T3 { ubyte a,b,c,d; long x:1; }; // 8 4 (32 bit) 8 8 (64 bit)
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struct T4 { ubyte a,b,c,d,e,f,g,h; long x:1; }; // 12 4 (32 bit) 16 8 (64 bit)
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struct T5 { ubyte a,b,c,d,e,f,g; long x:1; }; // 8 4 (32 bit) 8 8 (64 bit)
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struct S1 { long f:1; }; // 4 4 (32 bit) 8 8 (64 bit)
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struct S2 { int x:1; int y:1; }; // 4 4
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struct S3 { short c; int x:1; uint y:1; }; // 4 4
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struct S4 { int x:1; short y:1; }; // 4 4
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struct S5 { short x:1; int y:1; }; // 4 4
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struct S6 { short x:1; short y:1; }; // 2 2
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struct S7 { short x:1; int y:1; long z:1; }; // 4 4 (32 bit) 8 8 (64 bit)
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struct S8 { ubyte a; ubyte b:1; short c:2; }; // 2 2
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struct S8A { ubyte b:1; short c:2; }; // 2 2
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struct S8B { ubyte a; short b:1; ubyte c:2; }; // 2 2
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struct S8C { ubyte a; int b:1; }; // 4 4
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struct S9 { ubyte a; ubyte b:2; short c:9; }; // 4 2 x30201
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struct S10 { }; // differs from C sizeof
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struct S11 { int :0; }; // differs from C sizeof
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struct S12 { int :0; int x; }; // 4 4
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struct S13 { uint x:12; uint x1:1; uint x2:1; uint x3:1; uint x4:1; int w; }; // 8 4
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struct S14 { ubyte a; ubyte b:4; int c:30; }; // 8 4
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struct S15 { ubyte a; ubyte b:2; int c:9; }; // 4 4 xe01
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struct S16 { int :32; }; // 4 1
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struct S17 { int a:32; }; // 4 4
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struct S18 { ubyte a; long :0; ubyte b; }; // 5 1 (32 bit) 9 1 (64 bit)
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struct A0 { int a; long b:34, c:4; }; // 12 4 (32 bit) 16 8 (64 bit)
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struct A1 { int a; uint b:11; int c; }; // 12 4
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struct A2 { int a; uint b:11, c:5, d:16; // 12 4
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int e; };
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struct A3 { int a; uint b:11, c:5, :0, d:16; // 16 4
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int e; };
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struct A4 { int a:8; short b:7; // 8 4
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uint c:29; };
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struct A5 { ubyte a:7, b:2; }; // 2 1
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struct A6 { ubyte a:7; short b:2; }; // 2 2
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struct A7 { short a:8; int b:16; int c; // 12 4 (32 bit) 16 8 (64 bit)
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ubyte d:7; };
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struct A8 { short a:8; int b:16; int :0; // 8 4 (32 bit) 8 8 (64 bit)
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ubyte c:7; };
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struct A9 { ushort a:8; int b:16; // 16 4 (32 bit) 16 8 (64 bit)
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uint c:29; long d:9;
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uint e:2, f:31; };
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struct A10 { ushort a:8; ubyte b; }; // 2 2
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struct A11 { ubyte a; int b:5, c:11, :0, d:8; // 12 4
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struct { int ee:8; } };
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int main()
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{
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printf("T0 = %d %d | 1 1\n", cast(int)T0.sizeof, cast(int)T0.alignof);
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printf("T1 = %d %d | 2 2\n", cast(int)T1.sizeof, cast(int)T1.alignof);
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printf("T2 = %d %d | 4 4\n", cast(int)T2.sizeof, cast(int)T2.alignof);
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printf("T3 = %d %d | 8 4\n", cast(int)T3.sizeof, cast(int)T3.alignof);
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printf("T4 = %d %d | 12 4\n", cast(int)T4.sizeof, cast(int)T4.alignof);
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printf("T5 = %d %d | 8 4\n", cast(int)T5.sizeof, cast(int)T5.alignof);
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printf("S1 = %d %d | 8 8\n", cast(int)S1.sizeof, cast(int)S1.alignof);
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printf("S2 = %d %d | 4 4\n", cast(int)S2.sizeof, cast(int)S2.alignof);
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printf("S3 = %d %d | 4 4\n", cast(int)S3.sizeof, cast(int)S3.alignof);
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printf("S4 = %d %d | 4 4\n", cast(int)S4.sizeof, cast(int)S4.alignof);
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printf("S5 = %d %d | 4 4\n", cast(int)S5.sizeof, cast(int)S5.alignof);
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printf("S6 = %d %d | 2 2\n", cast(int)S6.sizeof, cast(int)S6.alignof);
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printf("S7 = %d %d | 8 8\n", cast(int)S7.sizeof, cast(int)S7.alignof);
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printf("S8 = %d %d | 2 2\n", cast(int)S8.sizeof, cast(int)S8.alignof);
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printf("S8A = %d %d | 2 2\n", cast(int)S8A.sizeof, cast(int)S8A.alignof);
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printf("S8B = %d %d | 2 2\n", cast(int)S8B.sizeof, cast(int)S8B.alignof);
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printf("S8C = %d %d | 4 4\n", cast(int)S8C.sizeof, cast(int)S8C.alignof);
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printf("S9 = %d %d | 4 2\n", cast(int)S9.sizeof, cast(int)S9.alignof);
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printf("S10 = %d %d | 0 1\n", cast(int)S10.sizeof, cast(int)S10.alignof);
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printf("S11 = %d %d | 0 1\n", cast(int)S11.sizeof, cast(int)S11.alignof);
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printf("S12 = %d %d | 4 4\n", cast(int)S12.sizeof, cast(int)S12.alignof);
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printf("S13 = %d %d | 8 4\n", cast(int)S13.sizeof, cast(int)S13.alignof);
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printf("S14 = %d %d | 8 4\n", cast(int)S14.sizeof, cast(int)S14.alignof);
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printf("S15 = %d %d | 4 4\n", cast(int)S15.sizeof, cast(int)S15.alignof);
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printf("S16 = %d %d | 4 1\n", cast(int)S16.sizeof, cast(int)S16.alignof);
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printf("S17 = %d %d | 4 4\n", cast(int)S17.sizeof, cast(int)S17.alignof);
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printf("S18 = %d %d | 5 1\n", cast(int)S18.sizeof, cast(int)S18.alignof);
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printf("A0 = %d %d | 12 4\n", cast(int)A0.sizeof, cast(int)A0.alignof);
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printf("A1 = %d %d | 12 4\n", cast(int)A1.sizeof, cast(int)A1.alignof);
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printf("A2 = %d %d | 12 4\n", cast(int)A2.sizeof, cast(int)A2.alignof);
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printf("A3 = %d %d | 16 4\n", cast(int)A3.sizeof, cast(int)A3.alignof);
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printf("A4 = %d %d | 8 4\n", cast(int)A4.sizeof, cast(int)A4.alignof);
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printf("A5 = %d %d | 2 1\n", cast(int)A5.sizeof, cast(int)A5.alignof);
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printf("A6 = %d %d | 2 2\n", cast(int)A6.sizeof, cast(int)A6.alignof);
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printf("A7 = %d %d | 12 4\n", cast(int)A7.sizeof, cast(int)A7.alignof);
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printf("A8 = %d %d | 8 4\n", cast(int)A8.sizeof, cast(int)A8.alignof);
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printf("A9 = %d %d | 16 4\n", cast(int)A9.sizeof, cast(int)A9.alignof);
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printf("A10 = %d %d | 2 2\n", cast(int)A10.sizeof, cast(int)A10.alignof);
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printf("A11 = %d %d | 12 4\n", cast(int)A11.sizeof, cast(int)A11.alignof);
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{
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S9 s;
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*cast(uint *)&s = 0;
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s.b = 2; s.c = 3;
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uint x = *cast(uint *)&s;
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printf("S9 = x%x\n", x);
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}
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{
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S14 s = { 1, 2, 3 };
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*cast(long *)&s = 0;
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s.a = 1;
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s.b = 2;
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s.c = 3;
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ulong v = *cast(ulong *)&s;
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printf("S14 = x%llx\n", v);
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}
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{
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S15 s = { 1,2,3 };
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*cast(uint *)&s = 0;
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s.a = 1; s.b = 2; s.c = 3;
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uint x = *cast(uint *)&s;
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printf("S15 = x%x\n", x);
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}
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{
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S18 s;
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printf("S18 = %d should be %d\n", cast(int)(&s.b - &s.a), is64bit() ? 8 : 4);
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}
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{
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A0 s;
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*cast(long *)&s = 0;
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s.a = 1; s.b = 15;
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long x = *cast(long *)&s;
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printf("A0 = x%llx\n", x);
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}
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return 0;
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}
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