forked from OSchip/llvm-project
146 lines
2.8 KiB
C++
146 lines
2.8 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config c++-inlining=constructors -std=c++11 -verify %s
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void clang_analyzer_eval(bool);
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class A {
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int x;
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public:
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A();
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};
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A::A() : x(0) {
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clang_analyzer_eval(x == 0); // expected-warning{{TRUE}}
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}
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class DirectMember {
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int x;
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public:
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DirectMember(int value) : x(value) {}
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int getX() { return x; }
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};
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void testDirectMember() {
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DirectMember obj(3);
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clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
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}
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class IndirectMember {
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struct {
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int x;
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};
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public:
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IndirectMember(int value) : x(value) {}
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int getX() { return x; }
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};
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void testIndirectMember() {
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IndirectMember obj(3);
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clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
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}
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struct DelegatingConstructor {
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int x;
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DelegatingConstructor(int y) { x = y; }
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DelegatingConstructor() : DelegatingConstructor(42) {}
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};
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void testDelegatingConstructor() {
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DelegatingConstructor obj;
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clang_analyzer_eval(obj.x == 42); // expected-warning{{TRUE}}
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}
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struct RefWrapper {
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RefWrapper(int *p) : x(*p) {}
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RefWrapper(int &r) : x(r) {}
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int &x;
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};
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void testReferenceMember() {
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int *p = 0;
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RefWrapper X(p); // expected-warning@-7 {{Dereference of null pointer}}
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}
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void testReferenceMember2() {
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int *p = 0;
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RefWrapper X(*p); // expected-warning {{Forming reference to null pointer}}
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}
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extern "C" char *strdup(const char *);
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class StringWrapper {
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char *str;
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public:
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StringWrapper(const char *input) : str(strdup(input)) {} // no-warning
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};
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// PR15070 - Constructing a type containing a non-POD array mistakenly
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// tried to perform a bind instead of relying on the CXXConstructExpr,
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// which caused a cast<> failure in RegionStore.
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namespace DefaultConstructorWithCleanups {
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class Element {
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public:
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int value;
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class Helper {
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public:
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~Helper();
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};
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Element(Helper h = Helper());
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};
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class Wrapper {
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public:
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Element arr[2];
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Wrapper();
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};
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Wrapper::Wrapper() /* initializers synthesized */ {}
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int test() {
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Wrapper w;
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return w.arr[0].value; // no-warning
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}
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}
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namespace DefaultMemberInitializers {
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struct Wrapper {
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int value = 42;
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Wrapper() {}
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Wrapper(int x) : value(x) {}
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Wrapper(bool) {}
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};
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void test() {
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Wrapper w1;
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clang_analyzer_eval(w1.value == 42); // expected-warning{{TRUE}}
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Wrapper w2(50);
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clang_analyzer_eval(w2.value == 50); // expected-warning{{TRUE}}
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Wrapper w3(false);
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clang_analyzer_eval(w3.value == 42); // expected-warning{{TRUE}}
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}
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struct StringWrapper {
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const char s[4] = "abc";
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const char *p = "xyz";
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StringWrapper(bool) {}
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};
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void testString() {
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StringWrapper w(true);
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clang_analyzer_eval(w.s[1] == 'b'); // expected-warning{{TRUE}}
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clang_analyzer_eval(w.p[1] == 'y'); // expected-warning{{TRUE}}
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}
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}
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