| --TEST-- | |
| FFI 039: Pointer arithmetic | |
| --EXTENSIONS-- | |
| ffi | |
| --INI-- | |
| ffi.enable=1 | |
| --FILE-- | |
| $a = FFI::cdef()->new("int[10]"); | |
| for ($i = 0; $i < 10; $i++) { | |
| $a[$i] = $i; | |
| } | |
| $p = $a + 0; | |
| var_dump($p[0]); | |
| $p += 7; | |
| var_dump($p[0]); | |
| $q = $p - 3; | |
| var_dump($q[0]); | |
| $q = 1 + $q; | |
| $p++; | |
| var_dump($p, $q); | |
| var_dump($p - $q); | |
| var_dump($q - $p); | |
| var_dump($q - $a); | |
| --EXPECTF-- | |
| int(0) | |
| int(7) | |
| int(4) | |
| object(FFI\CData:int32_t*)#%d (1) { | |
| [0]=> | |
| int(8) | |
| } | |
| object(FFI\CData:int32_t*)#%d (1) { | |
| [0]=> | |
| int(5) | |
| } | |
| int(3) | |
| int(-3) | |
| int(5) | |