Viewing file:  offsets.c (1.06 KB) -rw-rw-r--
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/* 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;
}
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