// RUN: %clangxx_msan -O0 %s -o %t && %run %t #include <sys/types.h> #include <grp.h> #include <unistd.h> // FreeBSD declares initgroups() here. int main(void) { initgroups("root", 0); // The above fails unless you are root. Does not matter, MSan false positive // (which we are testing for) happens anyway. return 0; }