| --TEST-- |
| FFI 022: structure/union alignment |
| --EXTENSIONS-- |
| ffi |
| --INI-- |
| ffi.enable=1 |
| --FILE-- |
| <?php |
| function test_size($size, $type) { |
| if (FFI::sizeof(FFI::cdef()->new($type)) !== $size) { |
| echo "FAIL: sizeof($type) != $size\n"; |
| } |
| } |
| |
| function test_align($align, $type) { |
| if (FFI::alignof(FFI::cdef()->new($type)) !== $align) { |
| echo "FAIL: alignof($type) != $align\n"; |
| } |
| } |
| |
| test_size(8, "struct {uint32_t a; uint32_t b;}"); |
| test_size(3, "struct {char a; uint8_t b; uint8_t c;}"); |
| test_size(8, "struct {char a; uint32_t b;}"); |
| test_size(8, "struct {uint32_t a; char b;}"); |
| test_size(5, "struct __attribute__((packed)) {char a; uint32_t b;}"); |
| test_size(5, "struct __attribute__((packed)) {uint32_t a; char b;}"); |
| |
| test_size(16, "struct {uint32_t a; uint32_t b;}[2]"); |
| test_size(6, "struct {char a; uint8_t b; uint8_t c;}[2]"); |
| test_size(16, "struct {char a; uint32_t b;}[2]"); |
| test_size(16, "struct {uint32_t a; char b;}[2]"); |
| test_size(10, "struct __attribute__((packed)) {char a; uint32_t b;}[2]"); |
| test_size(10, "struct __attribute__((packed)) {uint32_t a; char b;}[2]"); |
| |
| test_align(4, "union {uint32_t a; uint32_t b;}"); |
| test_align(1, "union {char a; uint8_t b; uint8_t c;}"); |
| test_align(4, "union {char a; uint32_t b;}"); |
| test_align(4, "union {uint32_t a; char b;}"); |
| test_align(1, "union __attribute__((packed)) {char a; uint32_t b;}"); |
| test_align(1, "union __attribute__((packed)) {uint32_t a; char b;}"); |
| |
| test_size(8, "struct {char a __attribute__((packed)); uint32_t b;}"); |
| test_size(5, "struct {char a; uint32_t b __attribute__((packed));}"); |
| test_size(5, "struct {uint32_t a __attribute__((packed)); char b;}"); |
| test_size(8, "struct {uint32_t a; char b __attribute__((packed));}"); |
| |
| test_align(4, "struct {char a __attribute__((packed)); uint32_t b;}"); |
| test_align(1, "struct {char a; uint32_t b __attribute__((packed));}"); |
| test_align(1, "struct {uint32_t a __attribute__((packed)); char b;}"); |
| test_align(4, "struct {uint32_t a; char b __attribute__((packed));}"); |
| |
| test_size(16, "struct __attribute__((aligned(16))) {char a; uint32_t b;}"); |
| test_align(16, "struct __attribute__((aligned(16))) {char a; uint32_t b;}"); |
| |
| test_size(16, "struct {char a; uint32_t b;} __attribute__((aligned(16)))"); |
| test_align(16, "struct {char a; uint32_t b;} __attribute__((aligned(16)))"); |
| |
| test_size(8, "struct {char a; uint32_t b __attribute__((aligned(1)));}"); |
| test_align(4, "struct {char a; uint32_t b __attribute__((aligned(1)));}"); |
| test_size(32, "struct {char a; uint32_t b __attribute__((aligned(16)));}"); |
| test_align(16, "struct {char a; uint32_t b __attribute__((aligned(16)));}"); |
| |
| if (substr(PHP_OS, 0, 3) != 'WIN') { |
| test_size(FFI::__BIGGEST_ALIGNMENT__ * 2, "struct {char a; uint32_t b __attribute__((aligned));}"); |
| test_align(FFI::__BIGGEST_ALIGNMENT__, "struct {char a; uint32_t b __attribute__((aligned));}"); |
| } |
| |
| test_size(16, "struct __declspec(align(16)) {char a; uint32_t b;}"); |
| test_align(16, "struct __declspec(align(16)) {char a; uint32_t b;}"); |
| ?> |
| ok |
| --EXPECT-- |
| ok |
| |
