cfb4eb293f
Because of this, we would previously emit NO path notes when a parameter is constrained to null (because there are no stores). Now we show where we made the assumption, which is much more useful. llvm-svn: 161280
37 lines
1.6 KiB
C++
37 lines
1.6 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-ipa=inlining -analyzer-output=text -verify %s
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// Test warning about null or uninitialized pointer values used as instance member
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// calls.
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class TestInstanceCall {
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public:
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void foo() {}
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};
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void test_ic() {
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TestInstanceCall *p; // expected-note {{Variable 'p' declared without an initial value}}
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p->foo(); // expected-warning {{Called C++ object pointer is uninitialized}} expected-note {{Called C++ object pointer is uninitialized}}
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}
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void test_ic_null() {
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TestInstanceCall *p = 0; // expected-note {{Variable 'p' initialized to a null pointer value}}
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p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}}
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}
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void test_ic_set_to_null() {
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TestInstanceCall *p;
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p = 0; // expected-note {{Null pointer value stored to 'p'}}
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p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}}
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}
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void test_ic_null(TestInstanceCall *p) {
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if (!p) // expected-note {{Assuming pointer value is null}} expected-note {{Taking true branch}}
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p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}}
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}
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void test_ic_member_ptr() {
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TestInstanceCall *p = 0; // expected-note {{Variable 'p' initialized to a null pointer value}}
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typedef void (TestInstanceCall::*IC_Ptr)();
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IC_Ptr bar = &TestInstanceCall::foo;
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(p->*bar)(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}}
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}
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