| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s |
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| 2 | |
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| 3 | namespace implicit_constructor { |
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| 4 | struct S { |
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| 5 | public: |
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| 6 | S() {} |
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| 7 | S(const S &) {} |
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| 8 | }; |
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| 9 | |
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| 10 | // Warning is in a weird position because the body of the constructor is |
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| 11 | // missing. Specify which field is being assigned. |
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| 12 | class C { // expected-warning{{Value assigned to field 'y' in implicit constructor is garbage or undefined}} |
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| 13 | // expected-note@-1{{Value assigned to field 'y' in implicit constructor is garbage or undefined}} |
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| 14 | int x, y; |
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| 15 | S s; |
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| 16 | |
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| 17 | public: |
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| 18 | C(): x(0) {} |
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| 19 | }; |
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| 20 | |
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| 21 | void test() { |
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| 22 | C c1; |
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| 23 | C c2(c1); // expected-note{{Calling implicit copy constructor for 'C'}} |
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| 24 | } |
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| 25 | } // end namespace implicit_constructor |
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| 26 | |
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| 27 | |
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| 28 | namespace explicit_constructor { |
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| 29 | class C { |
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| 30 | int x, y; |
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| 31 | |
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| 32 | public: |
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| 33 | C(): x(0) {} |
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| 34 | // It is not necessary to specify which field is being assigned to. |
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| 35 | C(const C &c): |
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| 36 | x(c.x), |
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| 37 | y(c.y) // expected-warning{{Assigned value is garbage or undefined}} |
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| 38 | // expected-note@-1{{Assigned value is garbage or undefined}} |
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| 39 | {} |
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| 40 | }; |
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| 41 | |
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| 42 | void test() { |
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| 43 | C c1; |
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| 44 | C c2(c1); // expected-note{{Calling copy constructor for 'C'}} |
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| 45 | } |
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| 46 | } // end namespace explicit_constructor |
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| 47 | |
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| 48 | |
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| 49 | namespace base_class_constructor { |
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| 50 | struct S { |
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| 51 | public: |
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| 52 | S() {} |
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| 53 | S(const S &) {} |
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| 54 | }; |
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| 55 | |
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| 56 | class C { // expected-warning{{Value assigned to field 'y' in implicit constructor is garbage or undefined}} |
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| 57 | // expected-note@-1{{Value assigned to field 'y' in implicit constructor is garbage or undefined}} |
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| 58 | int x, y; |
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| 59 | S s; |
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| 60 | |
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| 61 | public: |
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| 62 | C(): x(0) {} |
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| 63 | }; |
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| 64 | |
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| 65 | class D: public C { |
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| 66 | public: |
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| 67 | D(): C() {} |
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| 68 | }; |
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| 69 | |
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| 70 | void test() { |
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| 71 | D d1; |
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| 72 | D d2(d1); // expected-note {{Calling implicit copy constructor for 'D'}} |
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| 73 | // expected-note@-1{{Calling implicit copy constructor for 'C'}} |
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| 74 | } |
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| 75 | } // end namespace base_class_constructor |
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| 76 | |
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