forked from OSchip/llvm-project
108 lines
1.7 KiB
C++
108 lines
1.7 KiB
C++
// RUN: %clang_analyze_cc1 -w -analyzer-checker=core -verify %s
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// expected-no-diagnostics
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typedef __typeof(sizeof(int)) size_t;
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void *operator new(size_t, void *h) { return h; }
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// I've no idea what this code does, but it used to crash, so let's keep it.
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namespace pr37802_v1 {
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struct J {
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int *p;
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};
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class X {
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void *ar;
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public:
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X(void *t) : ar(t) {}
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template <typename T>
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void f(const T &t) {
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new (ar) T(t);
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}
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};
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class Y {
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public:
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template <typename T>
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void f(T &&);
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void f(J t) {
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f(*t.p);
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}
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};
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class Z {
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int at() const {}
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public:
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Z(const Z &other) {
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other.au(X(this));
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}
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template <typename T>
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void au(T t) const {
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void *c = const_cast<Z *>(this);
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if (at()) {
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t.f(*static_cast<J *>(c));
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} else {
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t.f(*static_cast<bool *>(c));
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}
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}
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};
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Z g() {
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Z az = g();
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Z e = az;
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Y d;
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e.au(d);
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}
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} // namespace pr37802_v1
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// This slightly modified code crashed differently.
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namespace pr37802_v2 {
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struct J {
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int *p;
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};
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class X {
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void *ar;
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public:
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X(void *t) : ar(t) {}
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void f(const J &t) { new (ar) J(t); }
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void f(const bool &t) { new (ar) bool(t); }
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};
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class Y {
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public:
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void boolf(bool &&);
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void f(J &&);
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void f(J t) { boolf(*t.p); }
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};
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class Z {
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int at() const {}
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public:
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Z(const Z &other) { other.au(X(this)); }
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void au(X t) const {
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void *c = const_cast<Z *>(this);
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if (at()) {
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t.f(*static_cast<J *>(c));
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} else {
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t.f(*static_cast<bool *>(c));
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}
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}
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void au(Y t) const {
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void *c = const_cast<Z *>(this);
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if (at()) {
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t.f(*static_cast<J *>(c));
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} else {
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}
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}
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};
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Z g() {
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Z az = g();
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Z e = az;
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Y d;
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e.au(d);
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}
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} // namespace pr37802_v2
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