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Tests for enable_if

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[SVN r1401]
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Jaakko Järvi
2003-07-02 21:34:25 +00:00
parent 46f8fa5e6f
commit 037808a780
8 changed files with 386 additions and 0 deletions
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45
test/enable_if_partial_specializations.cpp Normal file
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//
// Copyright 2003 <20> The Trustees of Indiana University. All rights
// reserved.
//
// See the file enable_if_LICENSE for licensing conditions.
//
// Authors: Jaakko J<>rvi (jajarvi@osl.iu.edu)
// Jeremiah Willcock (jewillco@osl.iu.edu)
// Andrew Lumsdaine (lums@osl.iu.edu)
//
#include <boost/test/minimal.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/type_traits/is_arithmetic.hpp>
using boost::enable_if;
using boost::disable_if;
using boost::is_arithmetic;
template <class T, class Enable = void>
struct tester;
template <class T>
struct tester<T, typename enable_if<is_arithmetic<T>::value>::type> {
BOOST_STATIC_CONSTANT(bool, value = true);
};
template <class T>
struct tester<T, typename disable_if<is_arithmetic<T>::value>::type> {
BOOST_STATIC_CONSTANT(bool, value = false);
};
int test_main(int, char*[])
{
BOOST_TEST(tester<int>::value);
BOOST_TEST(tester<double>::value);
BOOST_TEST(!tester<char*>::value);
BOOST_TEST(!tester<void*>::value);
return 0;
}