diff options
Diffstat (limited to 'boost/unordered/detail/fwd.hpp')
| -rw-r--r-- | boost/unordered/detail/fwd.hpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/boost/unordered/detail/fwd.hpp b/boost/unordered/detail/fwd.hpp index 75030a9a28..e749ce67bb 100644 --- a/boost/unordered/detail/fwd.hpp +++ b/boost/unordered/detail/fwd.hpp @@ -11,6 +11,8 @@ #pragma once #endif +#include <boost/predef.h> + #if defined(BOOST_UNORDERED_HAVE_PIECEWISE_CONSTRUCT) // Already defined. #elif defined(BOOST_LIBSTDCXX11) @@ -18,16 +20,19 @@ #if BOOST_LIBSTDCXX_VERSION > 40600 #define BOOST_UNORDERED_HAVE_PIECEWISE_CONSTRUCT 1 #endif -#elif defined(_LIBCPP_VERSION) +#elif BOOST_LIB_STD_CXX // https://github.com/llvm-mirror/libcxx/blob/release_30/include/utility#L206 -#if _LIBCPP_VERSION >= 3000 +#if BOOST_LIB_STD_CXX >= BOOST_VERSION_NUMBER(3, 0, 0) #define BOOST_UNORDERED_HAVE_PIECEWISE_CONSTRUCT 1 #endif -#elif defined(BOOST_MSVC) +#elif defined(BOOST_LIB_STD_DINKUMWARE) // Apparently C++11 standard supported in Visual Studio 2012 // https://msdn.microsoft.com/en-us/library/hh567368.aspx#stl // 2012 = VC+11 = BOOST_MSVC 1700 Hopefully! -#if BOOST_MSVC >= 1700 +// I have no idea when Dinkumware added it, probably a lot +// earlier than this check. +#if BOOST_LIB_STD_DINKUMWARE >= BOOST_VERSION_NUMBER(6, 50, 0) || \ + BOOST_COMP_MSVC >= BOOST_VERSION_NUMBER(17, 0, 0) #define BOOST_UNORDERED_HAVE_PIECEWISE_CONSTRUCT 1 #endif #endif |