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// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config c++-inlining=constructors -std=c++11 -verify %s
void clang_analyzer_eval(bool);
class A {
int x;
public:
A();
};
A::A() : x(0) {
clang_analyzer_eval(x == 0); // expected-warning{{TRUE}}
}
class DirectMember {
int x;
public:
DirectMember(int value) : x(value) {}
int getX() { return x; }
};
void testDirectMember() {
DirectMember obj(3);
clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
}
class IndirectMember {
struct {
int x;
};
public:
IndirectMember(int value) : x(value) {}
int getX() { return x; }
};
void testIndirectMember() {
IndirectMember obj(3);
clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
}
struct DelegatingConstructor {
int x;
DelegatingConstructor(int y) { x = y; }
DelegatingConstructor() : DelegatingConstructor(42) {}
};
void testDelegatingConstructor() {
DelegatingConstructor obj;
clang_analyzer_eval(obj.x == 42); // expected-warning{{TRUE}}
}
struct RefWrapper {
RefWrapper(int *p) : x(*p) {}
RefWrapper(int &r) : x(r) {}
int &x;
};
void testReferenceMember() {
int *p = 0;
RefWrapper X(p); // expected-warning@-7 {{Dereference of null pointer}}
}
void testReferenceMember2() {
int *p = 0;
RefWrapper X(*p); // expected-warning {{Forming reference to null pointer}}
}
extern "C" char *strdup(const char *);
class StringWrapper {
char *str;
public:
StringWrapper(const char *input) : str(strdup(input)) {} // no-warning
};
// PR15070 - Constructing a type containing a non-POD array mistakenly
// tried to perform a bind instead of relying on the CXXConstructExpr,
// which caused a cast<> failure in RegionStore.
namespace DefaultConstructorWithCleanups {
class Element {
public:
int value;
class Helper {
public:
~Helper();
};
Element(Helper h = Helper());
};
class Wrapper {
public:
Element arr[2];
Wrapper();
};
Wrapper::Wrapper() /* initializers synthesized */ {}
int test() {
Wrapper w;
return w.arr[0].value; // no-warning
}
}
namespace DefaultMemberInitializers {
struct Wrapper {
int value = 42;
Wrapper() {}
Wrapper(int x) : value(x) {}
Wrapper(bool) {}
};
void test() {
Wrapper w1;
clang_analyzer_eval(w1.value == 42); // expected-warning{{TRUE}}
Wrapper w2(50);
clang_analyzer_eval(w2.value == 50); // expected-warning{{TRUE}}
Wrapper w3(false);
clang_analyzer_eval(w3.value == 42); // expected-warning{{TRUE}}
}
struct StringWrapper {
const char s[4] = "abc";
const char *p = "xyz";
StringWrapper(bool) {}
};
void testString() {
StringWrapper w(true);
clang_analyzer_eval(w.s[1] == 'b'); // expected-warning{{TRUE}}
clang_analyzer_eval(w.p[1] == 'y'); // expected-warning{{TRUE}}
}
}
namespace ReferenceInitialization {
struct OtherStruct {
OtherStruct(int i);
~OtherStruct();
};
struct MyStruct {
MyStruct(int i);
MyStruct(OtherStruct os);
void method() const;
};
void referenceInitializeLocal() {
const MyStruct &myStruct(5);
myStruct.method(); // no-warning
}
void referenceInitializeMultipleLocals() {
const MyStruct &myStruct1(5), myStruct2(5), &myStruct3(5);
myStruct1.method(); // no-warning
myStruct2.method(); // no-warning
myStruct3.method(); // no-warning
}
void referenceInitializeLocalWithCleanup() {
const MyStruct &myStruct(OtherStruct(5));
myStruct.method(); // no-warning
}
struct HasMyStruct {
const MyStruct &ms; // expected-note {{reference member declared here}}
const MyStruct &msWithCleanups; // expected-note {{reference member declared here}}
// clang's Sema issues a warning when binding a reference member to a
// temporary value.
HasMyStruct() : ms(5), msWithCleanups(OtherStruct(5)) {
// expected-warning@-1 {{binding reference member 'ms' to a temporary value}}
// expected-warning@-2 {{binding reference member 'msWithCleanups' to a temporary value}}
// At this point the members are not garbage so we should not expect an
// analyzer warning here even though binding a reference member
// to a member is a terrible idea.
ms.method(); // no-warning
msWithCleanups.method(); // no-warning
}
};
void referenceInitializeField() {
HasMyStruct hms;
}
};
namespace PR31592 {
struct C {
C() : f("}") { } // no-crash
const char(&f)[2];
};
}
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