| // RUN: %clang -fsanitize=implicit-unsigned-integer-truncation %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK |
| |
| #include <stdint.h> |
| |
| int main() { |
| // CHECK-NOT: implicit-conversion |
| |
| // Negative tests. Even if they produce unexpected results, this sanitizer does not care. |
| int8_t n0 = (~((uint32_t)(0))); // ~0 -> -1, but do not warn. |
| uint8_t n2 = 128; |
| uint8_t n3 = 255; |
| // Bools do not count |
| _Bool b0 = (~((uint32_t)(0))); |
| _Bool b1 = 255; |
| |
| // Explicit and-ing of bits will silence it. |
| uint8_t nc0 = ((~((uint32_t)(0))) & 255); |
| |
| // Positive tests. |
| uint8_t t0 = (~((uint32_t)(0))); |
| // CHECK: implicit-conversion |
| // CHECK-NOT: implicit-conversion |
| |
| return 0; |
| } |
