1--TEST-- 2FFI 022: structure/union alignment 3--EXTENSIONS-- 4ffi 5--INI-- 6ffi.enable=1 7--FILE-- 8<?php 9function test_size($size, $type) { 10 if (FFI::sizeof(FFI::cdef()->new($type)) !== $size) { 11 echo "FAIL: sizeof($type) != $size\n"; 12 } 13} 14 15function test_align($align, $type) { 16 if (FFI::alignof(FFI::cdef()->new($type)) !== $align) { 17 echo "FAIL: alignof($type) != $align\n"; 18 } 19} 20 21test_size(8, "struct {uint32_t a; uint32_t b;}"); 22test_size(3, "struct {char a; uint8_t b; uint8_t c;}"); 23test_size(8, "struct {char a; uint32_t b;}"); 24test_size(8, "struct {uint32_t a; char b;}"); 25test_size(5, "struct __attribute__((packed)) {char a; uint32_t b;}"); 26test_size(5, "struct __attribute__((packed)) {uint32_t a; char b;}"); 27 28test_size(16, "struct {uint32_t a; uint32_t b;}[2]"); 29test_size(6, "struct {char a; uint8_t b; uint8_t c;}[2]"); 30test_size(16, "struct {char a; uint32_t b;}[2]"); 31test_size(16, "struct {uint32_t a; char b;}[2]"); 32test_size(10, "struct __attribute__((packed)) {char a; uint32_t b;}[2]"); 33test_size(10, "struct __attribute__((packed)) {uint32_t a; char b;}[2]"); 34 35test_align(4, "union {uint32_t a; uint32_t b;}"); 36test_align(1, "union {char a; uint8_t b; uint8_t c;}"); 37test_align(4, "union {char a; uint32_t b;}"); 38test_align(4, "union {uint32_t a; char b;}"); 39test_align(1, "union __attribute__((packed)) {char a; uint32_t b;}"); 40test_align(1, "union __attribute__((packed)) {uint32_t a; char b;}"); 41 42test_size(8, "struct {char a __attribute__((packed)); uint32_t b;}"); 43test_size(5, "struct {char a; uint32_t b __attribute__((packed));}"); 44test_size(5, "struct {uint32_t a __attribute__((packed)); char b;}"); 45test_size(8, "struct {uint32_t a; char b __attribute__((packed));}"); 46 47test_align(4, "struct {char a __attribute__((packed)); uint32_t b;}"); 48test_align(1, "struct {char a; uint32_t b __attribute__((packed));}"); 49test_align(1, "struct {uint32_t a __attribute__((packed)); char b;}"); 50test_align(4, "struct {uint32_t a; char b __attribute__((packed));}"); 51 52test_size(16, "struct __attribute__((aligned(16))) {char a; uint32_t b;}"); 53test_align(16, "struct __attribute__((aligned(16))) {char a; uint32_t b;}"); 54 55test_size(16, "struct {char a; uint32_t b;} __attribute__((aligned(16)))"); 56test_align(16, "struct {char a; uint32_t b;} __attribute__((aligned(16)))"); 57 58test_size(8, "struct {char a; uint32_t b __attribute__((aligned(1)));}"); 59test_align(4, "struct {char a; uint32_t b __attribute__((aligned(1)));}"); 60test_size(32, "struct {char a; uint32_t b __attribute__((aligned(16)));}"); 61test_align(16, "struct {char a; uint32_t b __attribute__((aligned(16)));}"); 62 63if (substr(PHP_OS, 0, 3) != 'WIN') { 64 test_size(FFI::__BIGGEST_ALIGNMENT__ * 2, "struct {char a; uint32_t b __attribute__((aligned));}"); 65 test_align(FFI::__BIGGEST_ALIGNMENT__, "struct {char a; uint32_t b __attribute__((aligned));}"); 66} 67 68test_size(16, "struct __declspec(align(16)) {char a; uint32_t b;}"); 69test_align(16, "struct __declspec(align(16)) {char a; uint32_t b;}"); 70?> 71ok 72--EXPECT-- 73ok 74
