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// RUN: %check_clang_tidy -std=c++11 -check-suffixes=ALL,CPP11 %s bugprone-multiple-new-in-one-expression %t -- -- -target x86_64-unknown-unknown
// RUN: %check_clang_tidy -std=c++17 -check-suffixes=ALL,CPP17 %s bugprone-multiple-new-in-one-expression %t -- -- -target x86_64-unknown-unknown
namespace std {
typedef __typeof__(sizeof(0)) size_t;
enum class align_val_t : std::size_t {};
class exception {};
class bad_alloc : public exception {};
struct nothrow_t {};
extern const nothrow_t nothrow;
} // namespace std
void *operator new(std::size_t, const std::nothrow_t &) noexcept;
void *operator new(std::size_t, std::align_val_t, const std::nothrow_t &) noexcept;
void *operator new(std::size_t, void *) noexcept;
void *operator new(std::size_t, char);
struct B;
struct A { int VarI; int *PtrI; B *PtrB; };
struct B { int VarI; };
struct G {
G(A*, B*) {}
int operator+=(A *) { return 3; };
};
struct H {
int *a;
int *b;
};
int f(int);
int f(A*);
int f(A*, B*);
int f(int, B*);
int f(G, G);
int f(B*);
int f(const H &);
void f1(void *, void *);
A *g(A *);
G operator+(const G&, const G&);
void test_function_parameter(A *XA, B *XB) {
(void)f(new A, new B);
try {
(void)f(new A, new B);
}
catch (A) {};
try {
(void)f(new A, new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:13: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception; order of these allocations is undefined [
(void)f(f(new A, new B));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:15: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
int X = f(new A, new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:15: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
X = f(new A, new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:11: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
X = 1 + f(new A, new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:15: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)f(g(new A), new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:15: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)f(1 + f(new A), new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:19: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)f(XA = new A, new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:18: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)f(1 + f(new A), XB = new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:19: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
}
catch (std::exception) {}
}
void test_operator(G *G1) {
(void)(f(new A) + f(new B));
try {
(void)(f(new A) + f(new B));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:14: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)f(f(new A) + f(new B));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:15: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
int X = f(new A) + f(new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:15: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
X = f(new A) + f(new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:11: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
X = 1 + f(new A) + 1 + f(new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:15: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)(f(g(new A)) + f(new B));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:16: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)(f(1 + f(new A)) + f(new B));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:20: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)(f(1 + f(new A)) + f(1 + f(new B)));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:20: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)((new A)->VarI + (new A)->VarI);
(void)(f(new A) + ((*G1) += new A));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:14: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
}
catch (std::bad_alloc) {}
}
void test_construct() {
(void)(G(new A, new B));
try {
(void)(G(new A, new B));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:14: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)(G(new A, nullptr) + G(nullptr, new B));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:14: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
f(G(new A, nullptr), G(new A, nullptr));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:9: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)new G(new A, nullptr);
// CHECK-MESSAGES-CPP11: :[[@LINE-1]]:11: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
// CHECK-MESSAGES-CPP17: :[[@LINE-2]]:11: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception [
(void)new G(nullptr, (new A)->PtrB);
G *Z = new G(new A, nullptr);
// CHECK-MESSAGES-CPP11: :[[@LINE-1]]:12: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
// CHECK-MESSAGES-CPP17: :[[@LINE-2]]:12: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception [
Z = new G(g(new A), nullptr);
// CHECK-MESSAGES-CPP11: :[[@LINE-1]]:9: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
// CHECK-MESSAGES-CPP17: :[[@LINE-2]]:9: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception [
G *Z1, *Z2 = new G(nullptr, (new A)->PtrB), *Z3;
// CHECK-MESSAGES-CPP11: :[[@LINE-1]]:18: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
// CHECK-MESSAGES-CPP17: :[[@LINE-2]]:18: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception [
}
catch (const std::bad_alloc &) {}
}
void test_new_assign() {
A *X, *Y;
(X = new A)->VarI = (Y = new A)->VarI;
try {
(X = new A)->VarI = (Y = new A)->VarI;
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:10: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(new A)->VarI = (Y = new A)->VarI;
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:6: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(X = new A)->VarI = (new A)->VarI;
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:10: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(new A)->VarI = (new A)->VarI;
(new A)->PtrI = new int;
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:6: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(X = new A)->VarI += (new A)->VarI;
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:10: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
}
catch (...) {}
}
void test_operator_fixed_order(unsigned int L) {
(void)(f((f(new A) || f(0)) + f(new B[L])));
try {
(void)(f(new A) || f(new B));
(void)(f(new A) && f(new B));
(void)(f(new A) || f(new B) || f(new A));
(void)(f(new A), f(new B));
int Y = f(0, new B) ? f(new A) : f(new B);
Y = f(new A) ? 1 : f(new B);
Y = f(new A) ? f(new B) : 1;
G g{new A, new B};
H h{new int, new int};
f({new int, new int});
(void)f({new A, new B}, {nullptr, nullptr});
(void)f({new A, new B}, {new A, nullptr});
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:14: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
(void)(f((f(new A) || f(0)) + f(new B[L])));
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:17: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
}
catch (std::bad_alloc) {}
}
void test_cast() {
try {
f1(static_cast<void *>(new A), new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:28: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
}
catch (std::bad_alloc &) {}
}
void test_nothrow(void *P) {
try {
(void)f(new(std::nothrow) A, new B);
(void)f(new A, new(std::nothrow) B);
(void)f(new(static_cast<std::align_val_t>(8), std::nothrow) A, new B);
(void)f(new(P) A, new B);
(void)f(new('a') A, new B);
// CHECK-MESSAGES-ALL: :[[@LINE-1]]:13: warning: memory allocation may leak if an other allocation is sequenced after it and throws an exception;
}
catch (std::exception) {}
}
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