70 lines
1.3 KiB
C++
70 lines
1.3 KiB
C++
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=debug.ExprInspection %s
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void clang_analyzer_eval(bool);
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enum class Foo {
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Zero
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};
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bool pr15703(int x) {
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return Foo::Zero == (Foo)x; // don't crash
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}
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void testCasting(int i) {
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Foo f = static_cast<Foo>(i);
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int j = static_cast<int>(f);
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if (i == 0)
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{
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clang_analyzer_eval(f == Foo::Zero); // expected-warning{{TRUE}}
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clang_analyzer_eval(j == 0); // expected-warning{{TRUE}}
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}
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else
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{
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clang_analyzer_eval(f == Foo::Zero); // expected-warning{{FALSE}}
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clang_analyzer_eval(j == 0); // expected-warning{{FALSE}}
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}
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}
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enum class EnumBool : bool {
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F = false,
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T = true
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};
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bool testNoCrashOnSwitchEnumBool(EnumBool E) {
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switch (E) {
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case EnumBool::F:
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return false;
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}
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return true;
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}
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bool testNoCrashOnSwitchEnumBoolConstant() {
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EnumBool E = EnumBool::F;
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switch (E) {
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case EnumBool::F:
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return false;
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}
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return true;
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}
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typedef __INTPTR_TYPE__ intptr_t;
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bool testNoCrashOnSwitchEnumBoolConstantCastedFromNullptr() {
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EnumBool E = static_cast<EnumBool>((intptr_t)nullptr);
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switch (E) {
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case EnumBool::F:
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return false;
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}
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return true;
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}
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bool testNoCrashOnSwitchEnumBoolConstantCastedFromPtr() {
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int X;
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intptr_t P = (intptr_t)&X;
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EnumBool E = static_cast<EnumBool>(P);
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switch (E) {
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case EnumBool::F:
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return false;
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}
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return true;
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}
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