diff options
Diffstat (limited to 'butl/ft')
| -rw-r--r-- | butl/ft/exception | 39 | ||||
| -rw-r--r-- | butl/ft/lang | 29 | ||||
| -rw-r--r-- | butl/ft/shared_mutex | 42 |
3 files changed, 110 insertions, 0 deletions
diff --git a/butl/ft/exception b/butl/ft/exception new file mode 100644 index 0000000..2dd3a38 --- /dev/null +++ b/butl/ft/exception @@ -0,0 +1,39 @@ +// file : butl/ft/exception -*- C++ -*- +// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#ifndef BUTL_FT_EXCEPTION +#define BUTL_FT_EXCEPTION + +#include <cstddef> // _LIBCPP_VERSION +#include <exception> + +// __cpp_lib_uncaught_exceptions +// +#ifndef __cpp_lib_uncaught_exceptions + // + // VC has it since 1900. + // +# if defined(_MSC_VER) +# if _MSC_VER >= 1900 +# define __cpp_lib_uncaught_exceptions 201411 +# endif + // + // Clang's libc++ seems to have it for a while (but not before 1200) so we + // assume it's there from 1200. But not for MacOS, where it is explicitly + // marked as unavailable until MacOS 10.12. + // +# elif defined(_LIBCPP_VERSION) +# if _LIBCPP_VERSION >= 1200 && \ + (!defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) || \ + __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101200) +# define __cpp_lib_uncaught_exceptions 201411 +# endif + // + // GCC libstdc++ has it since GCC 6 and it defines the feature test macro. + // We will also use this for any other runtime. + // +# endif +#endif + +#endif // BUTL_FT_EXCEPTION diff --git a/butl/ft/lang b/butl/ft/lang new file mode 100644 index 0000000..8cfc441 --- /dev/null +++ b/butl/ft/lang @@ -0,0 +1,29 @@ +// file : butl/ft/lang -*- C++ -*- +// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#ifndef BUTL_FT_LANG +#define BUTL_FT_LANG + +// __cpp_thread_local (extension) +// +// If this macro is undefined then one may choose to fallback to __thread. +// Note, however, that it only for values that do not require dynamic +// (runtime) initialization. +// +#ifndef __cpp_thread_local + // + // Apparently Apple's Clang "temporarily disabled" C++11 thread_local until + // they can implement a "fast" version, which reportedly happened in XCode + // 8. + // +# if defined(__apple_build_version__) +# if __apple_build_version__ >= 8000000 +# define __cpp_thread_local 201103 +# endif +# else +# define __cpp_thread_local 201103 +# endif +#endif + +#endif // BUTL_FT_LANG diff --git a/butl/ft/shared_mutex b/butl/ft/shared_mutex new file mode 100644 index 0000000..b4bab94 --- /dev/null +++ b/butl/ft/shared_mutex @@ -0,0 +1,42 @@ +// file : butl/ft/shared_mutex -*- C++ -*- +// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#ifndef BUTL_FT_SHARED_MUTEX +#define BUTL_FT_SHARED_MUTEX + +#include <cstddef> // _LIBCPP_VERSION +#include <shared_mutex> + +// __cpp_lib_shared_mutex +// +#ifndef __cpp_lib_shared_mutex + // + // VC has it since 1900. + // +# if defined(_MSC_VER) +# if _MSC_VER >= 1900 +# define __cpp_lib_shared_mutex 201505 +# endif + // + // Clang's libc++ seems to have it for a while (but not before 1200) so we + // assume it's there from 1200. + // +# elif defined(_LIBCPP_VERSION) +# if _LIBCPP_VERSION >= 1200 +# define __cpp_lib_shared_mutex 201505 +# endif + // + // GCC libstdc++ has it since GCC 6 and it defines the feature test macro. + // We will also use this for any other runtime. + // +# endif +#endif + +// __cpp_lib_shared_mutex +// +#ifndef __cpp_lib_shared_timed_mutex +# define __cpp_lib_shared_timed_mutex 201402 +#endif + +#endif // BUTL_FT_SHARED_MUTEX |