47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/* Area: Struct layout
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Purpose: Test ffi_get_struct_offsets
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Limitations: none.
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PR: none.
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Originator: Tom Tromey. */
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/* { dg-do run } */
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#include "ffitest.h"
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#include <stddef.h>
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struct test_1
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{
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char c;
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float f;
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char c2;
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int i;
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};
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int
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main (void)
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{
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ffi_type test_1_type;
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ffi_type *test_1_elements[5];
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size_t test_1_offsets[4];
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test_1_elements[0] = &ffi_type_schar;
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test_1_elements[1] = &ffi_type_float;
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test_1_elements[2] = &ffi_type_schar;
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test_1_elements[3] = &ffi_type_sint;
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test_1_elements[4] = NULL;
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test_1_type.size = 0;
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test_1_type.alignment = 0;
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test_1_type.type = FFI_TYPE_STRUCT;
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test_1_type.elements = test_1_elements;
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CHECK (ffi_get_struct_offsets (FFI_DEFAULT_ABI, &test_1_type, test_1_offsets)
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== FFI_OK);
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CHECK (test_1_type.size == sizeof (struct test_1));
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CHECK (offsetof (struct test_1, c) == test_1_offsets[0]);
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CHECK (offsetof (struct test_1, f) == test_1_offsets[1]);
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CHECK (offsetof (struct test_1, c2) == test_1_offsets[2]);
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CHECK (offsetof (struct test_1, i) == test_1_offsets[3]);
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return 0;
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}
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