// RUN: %check_clang_tidy %s bugprone-bitwise-pointer-cast %t void memcpy(void* to, void* dst, unsigned long long size) { // Dummy implementation for the purpose of the test } namespace std { using ::memcpy; } void pointer2pointer() { int x{}; int* px{}; float y{}; float* py{}; memcpy(&py, &px, sizeof(px)); // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not use 'memcpy' to cast between pointers [bugprone-bitwise-pointer-cast] std::memcpy(&py, &px, sizeof(px)); // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not use 'memcpy' to cast between pointers [bugprone-bitwise-pointer-cast] std::memcpy(&y, &x, sizeof(x)); } // Pointer-integer conversions are allowed by this check void int2pointer() { unsigned long long addr{}; float* p{}; std::memcpy(&p, &addr, sizeof(addr)); } void pointer2int() { unsigned long long addr{}; float* p{}; std::memcpy(&addr, &p, sizeof(p)); }