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Refactor int/float128: NVCC -std=c++11

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refactor the previous solution: nvcc with c++11 supports
__int128 and __float128
This commit is contained in:
Axel Huebl
2015-12-18 10:50:50 +01:00
parent a332112317
commit e5b21fb9b4
1 changed files with 13 additions and 4 deletions
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17
include/boost/config/compiler/gcc.hpp
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@ -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
// 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
//
@ -149,7 +158,7 @@
// be including <cstddef> later anyway when we select the std lib.
//
// Nevertheless, as of CUDA 7.5, using __float128 with the host
// compiler is still not supported.
// compiler in pre-C++11 mode is still not supported.
// See https://svn.boost.org/trac/boost/ticket/11852
//
#ifdef __cplusplus
@ -157,7 +166,7 @@
#else
#include <stddef.h>
#endif
#if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__) && !defined(__CUDACC__)
#if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__) && !defined(BOOST_NVCC_CXX03)
# define BOOST_HAS_FLOAT128
#endif