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#include "test.h"
struct Fields {
_Bool a :1;
long long :3;
unsigned b :4;
_Bool c :1;
unsigned d :3;
unsigned e :2;
long :2;
} __attribute__((packed));
struct WithPadding {
char a; // 1 byte
unsigned b : 3; // 3 bits
unsigned c : 5; // 5 bits
int d; // 4 bytes
};
struct ZeroWidth {
unsigned a : 5; // 5 bits
unsigned : 0; // Forces alignment to next int
unsigned b : 3; // 3 bits
};
struct Complex {
_Bool a : 1; // 1 bit
unsigned b : 3; // 3 bits
unsigned c : 5; // 5 bits
int d : 4; // 4 bits
unsigned long long e : 10; // 10 bits
};
struct MaxAlign {
unsigned long long a : 64; // 64 bits
unsigned long long b : 64; // 64 bits
};
int main() {
{
struct { char a; int b; } __attribute__((packed)) x;
printf("%d\n", sizeof(x));
ASSERT(5, sizeof(x));
}
{
union { int a; char b[4]; } x={0x01020304};
printf("%d\n", x.b[0]);
ASSERT(4, x.b[0]);
}
struct Fields s1 = {11,22,33,44,55,66,77};
struct Fields s2 = {77,66,55,44,33,22,11};
printf("%d\n", sizeof(struct Fields));
ASSERT(2, sizeof(struct Fields));
printf("%d\n", _Alignof(struct Fields));
ASSERT(1, _Alignof(struct Fields));
printf("Size of WithPadding struct: %lu\n", sizeof(struct WithPadding)); // Expected: 8
ASSERT(8, sizeof(struct WithPadding));
printf("Size of ZeroWidth struct: %lu\n", sizeof(struct ZeroWidth)); // Expected: 8
ASSERT(8, sizeof(struct ZeroWidth));
printf("Size of Complex struct: %lu\n", sizeof(struct Complex)); // Expected: 8
ASSERT(8, sizeof(struct Complex));
printf("Size of MaxAlign struct: %lu\n", sizeof(struct MaxAlign)); // Expected: 16
ASSERT(16, sizeof(struct MaxAlign));
return 0;
}
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