90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
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// RUN: %clang_analyze_cc1 -analyzer-checker=core.NullDereference,core.uninitialized.UndefReturn -std=c++11 %s -verify -o /dev/null
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void test_static_assert() {
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static_assert(sizeof(void *) == sizeof(void*), "test_static_assert");
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}
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void test_analyzer_working() {
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int *p = 0;
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*p = 0xDEADBEEF; // expected-warning {{null}}
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}
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// Test that pointer-to-member functions don't cause the analyzer
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// to crash.
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struct RDar10243398 {
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void bar(int x);
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};
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typedef void (RDar10243398::*RDar10243398MemberFn)(int x);
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void test_rdar10243398(RDar10243398 *p) {
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RDar10243398MemberFn q = &RDar10243398::bar;
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((*p).*(q))(1);
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}
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// Tests for CXXTemporaryObjectExpr.
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struct X {
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X( int *ip, int );
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};
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// Test to see if CXXTemporaryObjectExpr is being handled.
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int tempobj1()
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{
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int j;
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int i;
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X a = X( &j, 1 );
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return i; // expected-warning {{Undefined or garbage value returned to caller}}
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}
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// Test to see if CXXTemporaryObjectExpr invalidates arguments.
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int tempobj2()
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{
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int j;
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X a = X( &j, 1 );
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return j; // no-warning
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}
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// Test for correct handling of C++ ForRange statement.
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void test1() {
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int array[2] = { 1, 2 };
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int j = 0;
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for ( int i : array )
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j += i;
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int *p = 0;
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*p = 0xDEADBEEF; // expected-warning {{null}}
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}
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void test2() {
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int array[2] = { 1, 2 };
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int j = 0;
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for (int i : array)
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j += i;
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if (j == 3)
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return;
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int *p = 0;
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*p = 0xDEADBEEF; // no-warning
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}
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// Do not crash on the following when constructing the
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// callgraph.
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struct RDar11178609 {
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~RDar11178609() = delete;
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};
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// Tests that dynamic_cast handles references to C++ classes. Previously
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// this crashed.
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class rdar11817693_BaseBase {};
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class rdar11817693_BaseInterface {};
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class rdar11817693_Base : public rdar11817693_BaseBase, public rdar11817693_BaseInterface {};
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class rdar11817693 : public rdar11817693_Base {
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virtual void operator=(const rdar11817693_BaseBase& src);
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void operator=(const rdar11817693& src);
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};
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void rdar11817693::operator=(const rdar11817693& src) {
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operator=(dynamic_cast<const rdar11817693_BaseBase&>(src));
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}
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