1 files changed, 154 insertions, 0 deletions
diff --git a/src/boost/libs/logic/test/tribool_test.cpp b/src/boost/libs/logic/test/tribool_test.cpp
new file mode 100644
index 000000000..2a90949a5
--- /dev/null
+++ b/src/boost/libs/logic/test/tribool_test.cpp
@@ -0,0 +1,154 @@
+// Copyright Douglas Gregor 2002-2003. Use, modification and
+// distribution is subject to the Boost Software License, Version
+// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/config.hpp>
+#include <boost/logic/tribool.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/static_assert.hpp>
+#include <iostream>
+
+int main()
+{
+  using namespace boost::logic;
+
+  tribool x; // false
+  tribool y(true); // true
+  tribool z(indeterminate); // indeterminate
+
+#if defined( BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS )
+  // c++03 allows for implicit conversion to bool
+  // c++11 uses an explicit conversion operator so this would not compile
+  //       and that is tested in the compile-fail/implicit.cpp file
+  // so we check the conversion to ensure it is sane
+  bool bx = x;
+  BOOST_TEST(bx == false);
+  bool by = y;
+  BOOST_TEST(by == true);
+  bool bz = z;
+  BOOST_TEST(bz == false);
+#endif
+
+  BOOST_TEST(!x);
+  BOOST_TEST(x == false);
+  BOOST_TEST(false == x);
+  BOOST_TEST(x != true);
+  BOOST_TEST(true != x);
+  BOOST_TEST(indeterminate(x == indeterminate));
+  BOOST_TEST(indeterminate(indeterminate == x));
+  BOOST_TEST(indeterminate(x != indeterminate));
+  BOOST_TEST(indeterminate(indeterminate != x));
+  BOOST_TEST(x == x);
+  BOOST_TEST(!(x != x));
+  BOOST_TEST(!(x && true));
+  BOOST_TEST(!(true && x));
+  BOOST_TEST(x || true);
+  BOOST_TEST(true || x);
+
+  BOOST_TEST(y);
+  BOOST_TEST(y == true);
+  BOOST_TEST(true == y);
+  BOOST_TEST(y != false);
+  BOOST_TEST(false != y);
+  BOOST_TEST(indeterminate(y == indeterminate));
+  BOOST_TEST(indeterminate(indeterminate == y));
+  BOOST_TEST(indeterminate(y != indeterminate));
+  BOOST_TEST(indeterminate(indeterminate != y));
+  BOOST_TEST(y == y);
+  BOOST_TEST(!(y != y));
+
+  BOOST_TEST(indeterminate(z || !z));
+  BOOST_TEST(indeterminate(z == true));
+  BOOST_TEST(indeterminate(true == z));
+  BOOST_TEST(indeterminate(z == false));
+  BOOST_TEST(indeterminate(false == z));
+  BOOST_TEST(indeterminate(z == indeterminate));
+  BOOST_TEST(indeterminate(indeterminate == z));
+  BOOST_TEST(indeterminate(z != indeterminate));
+  BOOST_TEST(indeterminate(indeterminate != z));
+  BOOST_TEST(indeterminate(z == z));
+  BOOST_TEST(indeterminate(z != z));
+
+  BOOST_TEST(!(x == y));
+  BOOST_TEST(x != y);
+  BOOST_TEST(indeterminate(x == z));
+  BOOST_TEST(indeterminate(x != z));
+  BOOST_TEST(indeterminate(y == z));
+  BOOST_TEST(indeterminate(y != z));
+
+  BOOST_TEST(!(x && y));
+  BOOST_TEST(x || y);
+  BOOST_TEST(!(x && z));
+  BOOST_TEST(indeterminate(y && z));
+  BOOST_TEST(indeterminate(z && z));
+  BOOST_TEST(indeterminate(z || z));
+  BOOST_TEST(indeterminate(x || z));
+  BOOST_TEST(y || z);
+
+  BOOST_TEST(indeterminate(y && indeterminate));
+  BOOST_TEST(indeterminate(indeterminate && y));
+  BOOST_TEST(!(x && indeterminate));
+  BOOST_TEST(!(indeterminate && x));
+
+  BOOST_TEST(indeterminate || y);
+  BOOST_TEST(y || indeterminate);
+  BOOST_TEST(indeterminate(x || indeterminate));
+  BOOST_TEST(indeterminate(indeterminate || x));
+
+  // Test the if (z) ... else (!z) ... else ... idiom
+  if (z) {
+    BOOST_TEST(false);
+  }
+  else if (!z) {
+    BOOST_TEST(false);
+  }
+  else {
+    BOOST_TEST(true);
+  }
+
+  z = true;
+  if (z) {
+    BOOST_TEST(true);
+  }
+  else if (!z) {
+    BOOST_TEST(false);
+  }
+  else {
+    BOOST_TEST(false);
+  }
+
+  z = false;
+  if (z) {
+    BOOST_TEST(false);
+  }
+  else if (!z) {
+    BOOST_TEST(true);
+  }
+  else {
+    BOOST_TEST(false);
+  }
+
+#if !defined(BOOST_NO_CXX11_CONSTEXPR) 
+  constexpr bool res_ors = indeterminate(false || tribool(false) || false || indeterminate); // true
+  BOOST_TEST(res_ors);
+  char array_ors[res_ors ? 2 : 3];
+  BOOST_TEST(sizeof(array_ors) / sizeof(char) == 2);
+
+  constexpr bool res_ands = !indeterminate(!(true && tribool(true) && true && indeterminate)); // false
+  BOOST_TEST(!res_ands);
+  char array_ands[res_ands ? 2 : 3];
+  BOOST_TEST(sizeof(array_ands) / sizeof(char) == 3);
+
+  constexpr bool res_safe_bool = static_cast<bool>( tribool(true) );
+  BOOST_STATIC_ASSERT(res_safe_bool);
+
+// gcc 4.6 chokes on the xxx assignment
+# if !BOOST_WORKAROUND(BOOST_GCC, < 40700)
+    constexpr tribool xxx = (tribool(true) || tribool(indeterminate));
+    BOOST_STATIC_ASSERT(xxx);
+# endif
+#endif
+
+  return boost::report_errors();
+}