// RUN: %check_clang_tidy %s bugprone-random-generator-seed %t -- \ // RUN: -config="{CheckOptions: {bugprone-random-generator-seed.DisallowedSeedTypes: 'some_type,time_t'}}" void srand(int seed); typedef int time_t; time_t time(time_t *t); void f(void) { srand(1); // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: random number generator seeded with a constant value will generate a predictable sequence of values [bugprone-random-generator-seed] const int a = 1; srand(a); // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: random number generator seeded with a constant value will generate a predictable sequence of values [bugprone-random-generator-seed] time_t t; srand(time(&t)); // Disallowed seed type // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: random number generator seeded with a disallowed source of seed value will generate a predictable sequence of values [bugprone-random-generator-seed] } void g(void) { typedef int user_t; user_t a = 1; srand(a); int b = 1; srand(b); // Can not evaluate as int }