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