Files
codeql/cpp/ql/test/query-tests/Critical/InitialisationNotRun/test.cpp

37 lines
750 B
C++

// --- stubs ---
char *strcpy(char *dest, const char *src);
// --- tests ---
class GlobalStorage {
public:
char name[1000];
};
GlobalStorage *g1; // BAD
static GlobalStorage g2; // GOOD
static GlobalStorage *g3; // BAD
// static variables are initialized by compilers
static int a; // GOOD
static int b = 0; // GOOD
void init() { //initializes g_storage, but is never run from main
g1 = new GlobalStorage();
g3 = new GlobalStorage();
}
void init2(int b) {
for (int i = 0; i < b; ++i)
a *= -1;
}
int main(int argc, char *argv[]) {
//init not called
strcpy(g1->name, argv[1]); // g1 is used before init() is called
strcpy(g2.name, argv[1]); // g2 is initialised by compiler
strcpy(g3->name, argv[1]);
b++;
return 0;
}