| 1 | // C, C++ |
|---|---|
| 2 | void test() { |
| 3 | int *p = (int *)malloc(sizeof(int)); |
| 4 | delete p; // warn |
| 5 | } |
| 6 | |
| 7 | // C, C++ |
| 8 | void __attribute((ownership_returns(malloc))) *user_malloc(size_t); |
| 9 | void __attribute((ownership_takes(malloc, 1))) *user_free(void *); |
| 10 | |
| 11 | void __attribute((ownership_returns(malloc1))) *user_malloc1(size_t); |
| 12 | void __attribute((ownership_takes(malloc1, 1))) *user_free1(void *); |
| 13 | |
| 14 | void test() { |
| 15 | int *p = (int *)user_malloc(sizeof(int)); |
| 16 | delete p; // warn |
| 17 | } |
| 18 | |
| 19 | // C, C++ |
| 20 | void test() { |
| 21 | int *p = new int; |
| 22 | free(p); // warn |
| 23 | } |
| 24 | |
| 25 | // C, C++ |
| 26 | void test() { |
| 27 | int *p = new int[1]; |
| 28 | realloc(p, sizeof(long)); // warn |
| 29 | } |
| 30 | |
| 31 | // C, C++ |
| 32 | void test() { |
| 33 | int *p = user_malloc(10); |
| 34 | user_free1(p); // warn |
| 35 | } |
| 36 | |
| 37 | // C, C++ |
| 38 | template <typename T> |
| 39 | struct SimpleSmartPointer { |
| 40 | T *ptr; |
| 41 | |
| 42 | explicit SimpleSmartPointer(T *p = 0) : ptr(p) {} |
| 43 | ~SimpleSmartPointer() { |
| 44 | delete ptr; // warn |
| 45 | } |
| 46 | }; |
| 47 | |
| 48 | void test() { |
| 49 | SimpleSmartPointer<int> a((int *)malloc(4)); |
| 50 | } |
| 51 | |
| 52 | // C++ |
| 53 | void test() { |
| 54 | int *p = (int *)operator new(0); |
| 55 | delete[] p; // warn |
| 56 | } |
| 57 | |
| 58 | // Objective-C, C++ |
| 59 | void test(NSUInteger dataLength) { |
| 60 | int *p = new int; |
| 61 | NSData *d = [NSData dataWithBytesNoCopy:p |
| 62 | length:sizeof(int) freeWhenDone:1]; |
| 63 | // warn +dataWithBytesNoCopy:length:freeWhenDone: cannot take |
| 64 | // ownership of memory allocated by 'new' |
| 65 | } |
| 66 | |
| 67 |