1 files changed, 67 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/convert-to-bool.cpp b/clang/test/SemaCXX/convert-to-bool.cpp
new file mode 100644
index 0000000..c9a3555
--- /dev/null
+++ b/clang/test/SemaCXX/convert-to-bool.cpp
@@ -0,0 +1,67 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s 
+struct ConvToBool {
+  operator bool() const;
+};
+
+struct ConvToInt {
+  operator int();
+};
+
+struct ExplicitConvToBool {
+  explicit operator bool(); // expected-warning{{explicit conversion functions are a C++11 extension}}
+};
+
+void test_conv_to_bool(ConvToBool ctb, ConvToInt cti, ExplicitConvToBool ecb) {
+  if (ctb) { }
+  if (cti) { }
+  if (ecb) { }
+  for (; ctb; ) { }
+  for (; cti; ) { }
+  for (; ecb; ) { }
+  while (ctb) { };
+  while (cti) { }
+  while (ecb) { }
+  do { } while (ctb);
+  do { } while (cti);
+  do { } while (ecb);
+
+  if (!ctb) { }
+  if (!cti) { }
+  if (!ecb) { }
+
+  bool b1 = !ecb;
+  if (ctb && ecb) { }
+  bool b2 = ctb && ecb;
+  if (ctb || ecb) { }
+  bool b3 = ctb || ecb;
+}
+
+void accepts_bool(bool) { } // expected-note{{candidate function}}
+
+struct ExplicitConvToRef {
+  explicit operator int&(); // expected-warning{{explicit conversion functions are a C++11 extension}}
+};
+
+void test_explicit_bool(ExplicitConvToBool ecb) {
+  bool b1(ecb); // okay
+  bool b2 = ecb; // expected-error{{no viable conversion from 'ExplicitConvToBool' to 'bool'}}
+  accepts_bool(ecb); // expected-error{{no matching function for call to}}
+}
+
+void test_explicit_conv_to_ref(ExplicitConvToRef ecr) {
+  int& i1 = ecr; // expected-error{{non-const lvalue reference to type 'int' cannot bind to a value of unrelated type 'ExplicitConvToRef'}}
+  int& i2(ecr); // okay
+}
+
+struct A { };
+struct B { };
+struct C {
+  explicit operator A&(); // expected-warning{{explicit conversion functions are a C++11 extension}}
+  operator B&(); // expected-note{{candidate}}
+};
+
+void test_copy_init_conversions(C c) {
+  A &a = c; // expected-error{{no viable conversion from 'C' to 'A'}}
+  B &b = b; // okay
+}
+