| 1 |
|
|---|
| 2 | // (C) Copyright Runar Undheim, Robert Ramey & John Maddock 2000.
|
|---|
| 3 | // Use, modification and distribution are subject to the Boost Software License,
|
|---|
| 4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|---|
| 5 | // http://www.boost.org/LICENSE_1_0.txt).
|
|---|
| 6 | //
|
|---|
| 7 | // See http://www.boost.org/libs/type_traits for most recent version including documentation.
|
|---|
| 8 |
|
|---|
| 9 | #ifndef BOOST_TT_HAS_NEW_OPERATOR_HPP_INCLUDED
|
|---|
| 10 | #define BOOST_TT_HAS_NEW_OPERATOR_HPP_INCLUDED
|
|---|
| 11 |
|
|---|
| 12 | #include <boost/type_traits/config.hpp>
|
|---|
| 13 | #include <boost/type_traits/intrinsics.hpp>
|
|---|
| 14 | #include <boost/type_traits/is_pod.hpp>
|
|---|
| 15 | #include <boost/type_traits/detail/ice_or.hpp>
|
|---|
| 16 |
|
|---|
| 17 | // should be the last #include
|
|---|
| 18 | #include <boost/type_traits/detail/bool_trait_def.hpp>
|
|---|
| 19 |
|
|---|
| 20 | namespace boost {
|
|---|
| 21 | namespace detail {
|
|---|
| 22 | template <class U, U x>
|
|---|
| 23 | struct test;
|
|---|
| 24 |
|
|---|
| 25 | template <typename T>
|
|---|
| 26 | struct has_new_operator_impl {
|
|---|
| 27 | template<class U>
|
|---|
| 28 | static type_traits::yes_type check_sig(
|
|---|
| 29 | U*,
|
|---|
| 30 | test<
|
|---|
| 31 | void *(*)(size_t),
|
|---|
| 32 | &U::operator new
|
|---|
| 33 | >* = NULL
|
|---|
| 34 | );
|
|---|
| 35 | template<class U>
|
|---|
| 36 | static type_traits::no_type check_sig(...);
|
|---|
| 37 |
|
|---|
| 38 | // GCC2 won't even parse this template if we embed the computation
|
|---|
| 39 | // of s1 in the computation of value.
|
|---|
| 40 | #ifdef __GNUC__
|
|---|
| 41 | BOOST_STATIC_CONSTANT(unsigned, s1 = sizeof(has_new_operator<T>::template check_sig<T>(0)));
|
|---|
| 42 | #else
|
|---|
| 43 | #if BOOST_WORKAROUND(_MSC_FULL_VER, >= 140050000)
|
|---|
| 44 | #pragma warning(push)
|
|---|
| 45 | #pragma warning(disable:6334)
|
|---|
| 46 | #endif
|
|---|
| 47 |
|
|---|
| 48 | BOOST_STATIC_CONSTANT(unsigned, s1 = sizeof(check_sig<T>(0)));
|
|---|
| 49 |
|
|---|
| 50 | #if BOOST_WORKAROUND(_MSC_FULL_VER, >= 140050000)
|
|---|
| 51 | #pragma warning(pop)
|
|---|
| 52 | #endif
|
|---|
| 53 | #endif
|
|---|
| 54 | BOOST_STATIC_CONSTANT(bool, value = (s1 == sizeof(type_traits::yes_type)));
|
|---|
| 55 | };
|
|---|
| 56 | } // namespace detail
|
|---|
| 57 |
|
|---|
| 58 | BOOST_TT_AUX_BOOL_TRAIT_DEF1(has_new_operator,T,::boost::detail::has_new_operator_impl<T>::value)
|
|---|
| 59 |
|
|---|
| 60 | } // namespace boost
|
|---|
| 61 |
|
|---|
| 62 | #include <boost/type_traits/detail/bool_trait_undef.hpp>
|
|---|
| 63 |
|
|---|
| 64 | #endif // BOOST_TT_HAS_NEW_OPERATOR_HPP_INCLUDED
|
|---|
