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#include <cxxtest/TestSuite.h>
#include "common/scummsys.h"
#include <stddef.h>
#include <common/pack-start.h> // START STRUCT PACKING
struct TestStruct {
uint32 x;
byte y;
uint16 z;
uint32 a;
byte b;
} PACKED_STRUCT;
#include <common/pack-end.h> // END STRUCT PACKING
#define OFFS(type,item) (((ptrdiff_t)(&((type *)42)->type::item))-42)
class PackTestSuite : public CxxTest::TestSuite
{
public:
void test_packing() {
TS_ASSERT_EQUALS(sizeof(TestStruct), size_t(4+1+2+4+1));
}
void test_offsets() {
TS_ASSERT_EQUALS(OFFS(TestStruct, x), (ptrdiff_t)0);
TS_ASSERT_EQUALS(OFFS(TestStruct, y), (ptrdiff_t)4);
TS_ASSERT_EQUALS(OFFS(TestStruct, z), (ptrdiff_t)5);
TS_ASSERT_EQUALS(OFFS(TestStruct, a), (ptrdiff_t)7);
TS_ASSERT_EQUALS(OFFS(TestStruct, b), (ptrdiff_t)11);
}
};
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