// RUN: %clang -fsanitize=implicit-signed-integer-truncation %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK #include 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 = ((int32_t)(-1)) & 255; // Positive tests. uint8_t t0 = (int32_t)(-1); // CHECK: implicit-conversion // CHECK-NOT: implicit-conversion return 0; }