add subtree-ish sources for 12.0.3

[ceph.git] / ceph / src / boost / libs / variant / test / variant_comparison_test.cpp

diff --git a/ceph/src/boost/libs/variant/test/variant_comparison_test.cpp b/ceph/src/boost/libs/variant/test/variant_comparison_test.cpp
new file mode 100644 (file)
index 0000000..0f46afb
--- /dev/null
+++ b/ceph/src/boost/libs/variant/test/variant_comparison_test.cpp
@@ -0,0 +1,158 @@
+//-----------------------------------------------------------------------------
+// boost-libs variant/test/variant_comparison_test.cpp source file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003 Eric Friedman, Itay Maman
+// Copyright (c) 2014 Antony Polukhin
+//
+// Distributed under 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/variant/variant.hpp"
+#include "boost/test/minimal.hpp"
+
+#include <iostream>
+#include <sstream>
+#include <string>
+
+#include <algorithm>
+#include <vector>
+
+#include "boost/detail/workaround.hpp"
+#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x0551))
+#    pragma warn -lvc // temporary used for parameter warning
+#endif
+
+template <typename T>
+void assert_equality_comparable(
+      const T& x, const T& y, const T& z
+    )
+{
+    // identity check
+    BOOST_CHECK( !(&x == &y) || (x == y) );
+    BOOST_CHECK( !(&x == &z) || (x == z) );
+    BOOST_CHECK( !(&y == &z) || (y == z) );
+    BOOST_CHECK( !(&x == &y) || !(x != y) );
+    BOOST_CHECK( !(&x == &z) || !(x != z) );
+    BOOST_CHECK( !(&y == &z) || !(y != z) );
+
+    // reflexivity check
+    BOOST_CHECK( (x == x) );
+    BOOST_CHECK( (y == y) );
+    BOOST_CHECK( (z == z) );
+
+    // symmetry check
+    BOOST_CHECK( !(x == y) || (y == x) );
+    BOOST_CHECK( !(y == x) || (x == y) );
+    BOOST_CHECK( (x != y) || (y == x) );
+    BOOST_CHECK( (y != x) || (x == y) );
+
+    BOOST_CHECK( !(x == z) || (z == x) );
+    BOOST_CHECK( !(z == x) || (x == z) );
+    BOOST_CHECK( (x != z) || (z == x) );
+    BOOST_CHECK( (z != x) || (x == z) );
+
+    BOOST_CHECK( !(y == z) || (z == y) );
+    BOOST_CHECK( !(z == y) || (y == z) );
+    BOOST_CHECK( (y != z) || (z == y) );
+    BOOST_CHECK( (z != y) || (y == z) );
+
+    // transitivity check
+    BOOST_CHECK( !(x == y && y == z) || (x == z) );
+    BOOST_CHECK( !(x == z && z == y) || (x == y) );
+    BOOST_CHECK( !(y == z && z == x) || (y == x) );
+}
+
+template <typename T>
+void assert_less_than_comparable(
+      const T& x, const T& y, const T& z
+    )
+{
+    // irreflexivity check
+    BOOST_CHECK( !(x < x) );
+    BOOST_CHECK( !(y < y) );
+    BOOST_CHECK( !(z < z) );
+    BOOST_CHECK( !(x > x) );
+    BOOST_CHECK( !(y > y) );
+    BOOST_CHECK( !(z > z) );
+
+    BOOST_CHECK( (x <= x) );
+    BOOST_CHECK( (y <= y) );
+    BOOST_CHECK( (z <= z) );
+    BOOST_CHECK( (x >= x) );
+    BOOST_CHECK( (y >= y) );
+    BOOST_CHECK( (z >= z) );
+
+    // transitivity check
+    BOOST_CHECK( (x < y) );
+    BOOST_CHECK( (y < z) );
+    BOOST_CHECK( (x < z) );
+
+    BOOST_CHECK( (x <= y) );
+    BOOST_CHECK( (y <= z) );
+    BOOST_CHECK( (x <= z) );
+
+    BOOST_CHECK( (z > y) );
+    BOOST_CHECK( (y > x) );
+    BOOST_CHECK( (z > x) );
+
+    BOOST_CHECK( (z >= y) );
+    BOOST_CHECK( (y >= x) );
+    BOOST_CHECK( (z >= x) );
+
+    // antisymmetry check
+    BOOST_CHECK( !(y < x) );
+    BOOST_CHECK( !(z < y) );
+    BOOST_CHECK( !(z < x) );
+}
+
+template <typename It>
+std::string print_range(It first, It last)
+{
+    std::ostringstream result;
+
+    while (first != last)
+    {
+        result << *first << ' ';
+        ++first;
+    }
+
+    return result.str();
+}
+
+int test_main(int , char* [])
+{
+    typedef boost::variant<int, std::string> var_t;
+    
+    var_t var1(3);
+    var_t var2(5);
+    var_t var3("goodbye");
+    var_t var4("hello");
+
+    assert_equality_comparable(var1, var1, var1);
+    assert_equality_comparable(var_t(var1), var_t(var1), var_t(var1));
+    assert_equality_comparable(var1, var2, var3);
+
+    assert_less_than_comparable(var1, var2, var3);
+    assert_less_than_comparable(var2, var3, var4);
+
+    std::vector<var_t> vec;
+    vec.push_back( var3 );
+    vec.push_back( var2 );
+    vec.push_back( var4 );
+    vec.push_back( var1 );
+    std::sort(vec.begin(), vec.end());
+
+    std::string sort_result( print_range(vec.begin(), vec.end()) );
+    BOOST_CHECK( sort_result == "3 5 goodbye hello " );
+
+    // https://svn.boost.org/trac/boost/ticket/11751
+    int a = 0, b = 0;
+
+    boost::variant< int& > v (a), u (b);
+    BOOST_CHECK(v == u);
+
+    return boost::exit_success;
+}