--- /dev/null
+/*
+ * Copyright (c) 2014, Peter Thorson. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the WebSocket++ Project nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef WEBSOCKETPP_COMMON_CPP11_HPP
+#define WEBSOCKETPP_COMMON_CPP11_HPP
+
+/**
+ * This header sets up some constants based on the state of C++11 support
+ */
+
+// Hide clang feature detection from other compilers
+#ifndef __has_feature // Optional of course.
+ #define __has_feature(x) 0 // Compatibility with non-clang compilers.
+#endif
+#ifndef __has_extension
+ #define __has_extension __has_feature // Compatibility with pre-3.0 compilers.
+#endif
+
+// The code below attempts to use information provided by the build system or
+// user supplied defines to selectively enable C++11 language and library
+// features. In most cases features that are targeted individually may also be
+// selectively disabled via an associated _WEBSOCKETPP_NOXXX_ define.
+
+#if defined(_WEBSOCKETPP_CPP11_STL_) || __cplusplus >= 201103L || defined(_WEBSOCKETPP_CPP11_STRICT_)
+ // This check tests for blanket c++11 coverage. It can be activated in one
+ // of three ways. Either the compiler itself reports that it is a full
+ // C++11 compiler via the __cplusplus macro or the user/build system
+ // supplies one of the two preprocessor defines below:
+
+ // This is defined to allow other WebSocket++ common headers to enable
+ // C++11 features when they are detected by this file rather than
+ // duplicating the above logic in every common header.
+ #define _WEBSOCKETPP_CPP11_INTERNAL_
+
+ // _WEBSOCKETPP_CPP11_STRICT_
+ //
+ // This define reports to WebSocket++ that 100% of the language and library
+ // features of C++11 are available. Using this define on a non-C++11
+ // compiler will result in problems.
+
+ // _WEBSOCKETPP_CPP11_STL_
+ //
+ // This define enables *most* C++11 options that were implemented early on
+ // by compilers. It is typically used for compilers that have many, but not
+ // all C++11 features. It should be safe to use on GCC 4.7-4.8 and perhaps
+ // earlier.
+ #ifndef _WEBSOCKETPP_NOEXCEPT_TOKEN_
+ #define _WEBSOCKETPP_NOEXCEPT_TOKEN_ noexcept
+ #endif
+ #ifndef _WEBSOCKETPP_CONSTEXPR_TOKEN_
+ #define _WEBSOCKETPP_CONSTEXPR_TOKEN_ constexpr
+ #endif
+ #ifndef _WEBSOCKETPP_INITIALIZER_LISTS_
+ #define _WEBSOCKETPP_INITIALIZER_LISTS_
+ #endif
+ #ifndef _WEBSOCKETPP_NULLPTR_TOKEN_
+ #define _WEBSOCKETPP_NULLPTR_TOKEN_ nullptr
+ #endif
+ #ifndef _WEBSOCKETPP_MOVE_SEMANTICS_
+ #define _WEBSOCKETPP_MOVE_SEMANTICS_
+ #endif
+ #ifndef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
+ #define _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
+ #endif
+
+ #ifndef __GNUC__
+ // GCC as of version 4.9 (latest) does not support std::put_time yet.
+ // so ignore it
+ #define _WEBSOCKETPP_PUTTIME_
+ #endif
+#else
+ // In the absence of a blanket define, try to use compiler versions or
+ // feature testing macros to selectively enable what we can.
+
+ // Test for noexcept
+ #ifndef _WEBSOCKETPP_NOEXCEPT_TOKEN_
+ #ifdef _WEBSOCKETPP_NOEXCEPT_
+ // build system says we have noexcept
+ #define _WEBSOCKETPP_NOEXCEPT_TOKEN_ noexcept
+ #else
+ #if __has_feature(cxx_noexcept)
+ // clang feature detect says we have noexcept
+ #define _WEBSOCKETPP_NOEXCEPT_TOKEN_ noexcept
+ #elif defined(_MSC_VER) && _MSC_VER >= 1900
+ // Visual Studio 2015+ has noexcept
+ #define _WEBSOCKETPP_NOEXCEPT_TOKEN_ noexcept
+ #else
+ // assume we don't have noexcept
+ #define _WEBSOCKETPP_NOEXCEPT_TOKEN_
+ #endif
+ #endif
+ #endif
+
+ // Test for constexpr
+ #ifndef _WEBSOCKETPP_CONSTEXPR_TOKEN_
+ #ifdef _WEBSOCKETPP_CONSTEXPR_
+ // build system says we have constexpr
+ #define _WEBSOCKETPP_CONSTEXPR_TOKEN_ constexpr
+ #else
+ #if __has_feature(cxx_constexpr)
+ // clang feature detect says we have constexpr
+ #define _WEBSOCKETPP_CONSTEXPR_TOKEN_ constexpr
+ #elif defined(_MSC_VER) && _MSC_VER >= 1900
+ // Visual Studio 2015+ has constexpr
+ #define _WEBSOCKETPP_CONSTEXPR_TOKEN_ constexpr
+ #else
+ // assume we don't have constexpr
+ #define _WEBSOCKETPP_CONSTEXPR_TOKEN_
+ #endif
+ #endif
+ #endif
+
+ // Enable initializer lists on clang when available.
+ #if __has_feature(cxx_generalized_initializers) && !defined(_WEBSOCKETPP_INITIALIZER_LISTS_)
+ #define _WEBSOCKETPP_INITIALIZER_LISTS_
+ #endif
+
+ // Test for nullptr
+ #ifndef _WEBSOCKETPP_NULLPTR_TOKEN_
+ #ifdef _WEBSOCKETPP_NULLPTR_
+ // build system says we have nullptr
+ #define _WEBSOCKETPP_NULLPTR_TOKEN_ nullptr
+ #else
+ #if __has_feature(cxx_nullptr)
+ // clang feature detect says we have nullptr
+ #define _WEBSOCKETPP_NULLPTR_TOKEN_ nullptr
+ #elif defined(_MSC_VER) &&_MSC_VER >= 1600
+ // Visual Studio version that has nullptr
+ #define _WEBSOCKETPP_NULLPTR_TOKEN_ nullptr
+ #else
+ // assume we don't have nullptr
+ #define _WEBSOCKETPP_NULLPTR_TOKEN_ 0
+ #endif
+ #endif
+ #endif
+#endif
+
+#endif // WEBSOCKETPP_COMMON_CPP11_HPP
projects / c11concurrency-benchmarks.git / blobdiff