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authorDongHun Kwak <dh0128.kwak@samsung.com>2016-10-06 10:38:45 +0900
committerDongHun Kwak <dh0128.kwak@samsung.com>2016-10-06 10:39:52 +0900
commit5cde13f21d36c7224b0e13d11c4b49379ae5210d (patch)
treee8269ac85a4b0f7d416e2565fa4f451b5cb41351 /boost/config/compiler/gcc.hpp
parentd9ec475d945d3035377a0d89ed42e382d8988891 (diff)
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Imported Upstream version 1.61.0
Change-Id: I96a1f878d1e6164f01e9aadd5147f38fca448d90 Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>
Diffstat (limited to 'boost/config/compiler/gcc.hpp')
-rw-r--r--boost/config/compiler/gcc.hpp21
1 files changed, 17 insertions, 4 deletions
diff --git a/boost/config/compiler/gcc.hpp b/boost/config/compiler/gcc.hpp
index d9dd59dc5f..fbd3dd9c19 100644
--- a/boost/config/compiler/gcc.hpp
+++ b/boost/config/compiler/gcc.hpp
@@ -133,14 +133,23 @@
//
// Recent GCC versions have __int128 when in 64-bit mode.
//
-// We disable this if the compiler is really nvcc as it
-// doesn't actually support __int128 as of CUDA_VERSION=5000
+// We disable this if the compiler is really nvcc with C++03 as it
+// doesn't actually support __int128 as of CUDA_VERSION=7500
// even though it defines __SIZEOF_INT128__.
// See https://svn.boost.org/trac/boost/ticket/8048
+// https://svn.boost.org/trac/boost/ticket/11852
// Only re-enable this for nvcc if you're absolutely sure
// of the circumstances under which it's supported:
//
-#if defined(__SIZEOF_INT128__) && !defined(__CUDACC__)
+#if defined(__CUDACC__)
+# if defined(BOOST_GCC_CXX11)
+# define BOOST_NVCC_CXX11
+# else
+# define BOOST_NVCC_CXX03
+# endif
+#endif
+
+#if defined(__SIZEOF_INT128__) && !defined(BOOST_NVCC_CXX03)
# define BOOST_HAS_INT128
#endif
//
@@ -148,12 +157,16 @@
// include a std lib header to detect this - not ideal, but we'll
// be including <cstddef> later anyway when we select the std lib.
//
+// Nevertheless, as of CUDA 7.5, using __float128 with the host
+// compiler in pre-C++11 mode is still not supported.
+// See https://svn.boost.org/trac/boost/ticket/11852
+//
#ifdef __cplusplus
#include <cstddef>
#else
#include <stddef.h>
#endif
-#if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__)
+#if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__) && !defined(BOOST_NVCC_CXX03)
# define BOOST_HAS_FLOAT128
#endif