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