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Diffstat (limited to 'src/boost/libs/variant/test/test5.cpp')
-rw-r--r-- | src/boost/libs/variant/test/test5.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/boost/libs/variant/test/test5.cpp b/src/boost/libs/variant/test/test5.cpp new file mode 100644 index 00000000..5de06c8c --- /dev/null +++ b/src/boost/libs/variant/test/test5.cpp @@ -0,0 +1,90 @@ +//----------------------------------------------------------------------------- +// boost-libs variant/test/test5.cpp header file +// See http://www.boost.org for updates, documentation, and revision history. +//----------------------------------------------------------------------------- +// +// Copyright (c) 2003 +// Eric Friedman, Itay Maman +// +// 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/core/lightweight_test.hpp" +#include "boost/variant.hpp" + +#include "jobs.h" + +#include <assert.h> +#include <iostream> +#include <string> +#include <vector> + + +void run() +{ + using std::string; + using boost::variant; + using boost::apply_visitor; + + typedef variant<int, float, unsigned short, unsigned char> t_var1; + typedef variant<int, t_var1, unsigned short, unsigned char> t_var2; + typedef variant<string, int, t_var2> t_var3; + + t_var1 v1; + t_var2 v2; + t_var2 v2_second; + t_var3 v3; + + const char c0 = 'x'; + v1 = c0; + + //v2 and v3 are holding (aka: containing) a variant + v2 = v1; + v3 = v2; + + verify(v1, spec<int>()); + verify(v2, spec<t_var1>()); + verify(v3, spec<t_var2>()); + + + // + // assignment from const char (Converted to int) + // + v2 = c0; + v3 = c0; + + verify(v2, spec<int>()); + verify(v3, spec<int>()); + + + BOOST_TEST(apply_visitor(sum_int(), v2) == c0); + BOOST_TEST(apply_visitor(sum_int(), v3) == c0); + + sum_int adder; + apply_visitor(adder, v2); + apply_visitor(adder, v3); + + BOOST_TEST(adder.result() == 2*c0); + + // + // A variant holding a variant + // + typedef variant<unsigned char, float> t_var4; + typedef variant<string, t_var4> t_var5; + + t_var4 v4; + t_var5 v5; + + v5 = 22.5f; + verify(v5, spec<t_var4>(), "[V] [V] 22.5"); +} + + + +int main() +{ + run(); + return boost::report_errors(); +} + |