xref: /aosp_15_r20/external/clang/test/Analysis/enum.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -analyze -std=c++11 -analyzer-checker=debug.ExprInspection %s
2*67e74705SXin Li 
3*67e74705SXin Li void clang_analyzer_eval(bool);
4*67e74705SXin Li 
5*67e74705SXin Li enum class Foo {
6*67e74705SXin Li   Zero
7*67e74705SXin Li };
8*67e74705SXin Li 
pr15703(int x)9*67e74705SXin Li bool pr15703(int x) {
10*67e74705SXin Li   return Foo::Zero == (Foo)x; // don't crash
11*67e74705SXin Li }
12*67e74705SXin Li 
testCasting(int i)13*67e74705SXin Li void testCasting(int i) {
14*67e74705SXin Li   Foo f = static_cast<Foo>(i);
15*67e74705SXin Li   int j = static_cast<int>(f);
16*67e74705SXin Li   if (i == 0)
17*67e74705SXin Li   {
18*67e74705SXin Li     clang_analyzer_eval(f == Foo::Zero); // expected-warning{{TRUE}}
19*67e74705SXin Li     clang_analyzer_eval(j == 0); // expected-warning{{TRUE}}
20*67e74705SXin Li   }
21*67e74705SXin Li   else
22*67e74705SXin Li   {
23*67e74705SXin Li     clang_analyzer_eval(f == Foo::Zero); // expected-warning{{FALSE}}
24*67e74705SXin Li     clang_analyzer_eval(j == 0); // expected-warning{{FALSE}}
25*67e74705SXin Li   }
26*67e74705SXin Li }
27