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Merge pull request #341 from gummif/gfa/cpp11-gcc

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Problem: C++11 partially supported on gcc 4.8
This commit is contained in:
Simon Giesecke
2019-08-31 12:41:13 +02:00
committed by GitHub
parent ef2e3284c2 4f1ff4952d
commit 1f66e996d5
6 changed files with 39 additions and 15 deletions
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18
zmq.hpp
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@@ -122,6 +122,18 @@
#define ZMQ_DELETED_FUNCTION
#endif
#if defined(ZMQ_CPP11) && defined(__GNUC__) && __GNUC__ < 5
#define ZMQ_CPP11_PARTIAL
#endif
#ifdef ZMQ_CPP11
#ifdef ZMQ_CPP11_PARTIAL
#define ZMQ_IS_TRIVIALLY_COPYABLE(T) __has_trivial_copy(T)
#else
#define ZMQ_IS_TRIVIALLY_COPYABLE(T) std::is_trivially_copyable<T>::value
#endif
#endif
#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(3, 3, 0)
#define ZMQ_NEW_MONITOR_EVENT_LAYOUT
#endif
@@ -327,11 +339,11 @@ class message_t
throw error_t();
}
#ifdef ZMQ_CPP11
#if defined(ZMQ_CPP11) && !defined(ZMQ_CPP11_PARTIAL)
template<class Range,
typename = typename std::enable_if<
detail::is_range<Range>::value
&& std::is_trivially_copyable<detail::range_value_t<Range>>::value
&& ZMQ_IS_TRIVIALLY_COPYABLE(detail::range_value_t<Range>)
&& !std::is_same<Range, message_t>::value>::type>
explicit message_t(const Range &rng) :
message_t(detail::ranges::begin(rng), detail::ranges::end(rng))
@@ -948,7 +960,7 @@ template<class T> struct is_pod_like
// trivially copyable OR standard layout.
// Here we decide to be conservative and require both.
static constexpr bool value =
std::is_trivially_copyable<T>::value && std::is_standard_layout<T>::value;
ZMQ_IS_TRIVIALLY_COPYABLE(T) && std::is_standard_layout<T>::value;
};
template<class C> constexpr auto seq_size(const C &c) noexcept -> decltype(c.size())