Random123/features/compilerfeatures.h
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00001 /* 00002 Copyright 2010-2011, D. E. Shaw Research. 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without 00006 modification, are permitted provided that the following conditions are 00007 met: 00008 00009 * Redistributions of source code must retain the above copyright 00010 notice, this list of conditions, and the following disclaimer. 00011 00012 * Redistributions in binary form must reproduce the above copyright 00013 notice, this list of conditions, and the following disclaimer in the 00014 documentation and/or other materials provided with the distribution. 00015 00016 * Neither the name of D. E. Shaw Research nor the names of its 00017 contributors may be used to endorse or promote products derived from 00018 this software without specific prior written permission. 00019 00020 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00021 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00022 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00023 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00024 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00025 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00026 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00027 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00028 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00029 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00030 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 */ 00190 /* 00191 N.B. When something is added to the list of features, it should be 00192 added to each of the *features.h files, AND to examples/ut_features.cpp. 00193 */ 00194 00195 /* N.B. most other compilers (icc, nvcc, open64, llvm) will also define __GNUC__, so order matters. */ 00196 #if defined(__OPENCL_VERSION__) && __OPENCL_VERSION__ > 0 00197 #include "openclfeatures.h" 00198 #elif defined(__CUDACC__) 00199 #include "nvccfeatures.h" 00200 #elif defined(__ICC) 00201 #include "iccfeatures.h" 00202 #elif defined(__xlC__) 00203 #include "xlcfeatures.h" 00204 #elif defined(__SUNPRO_C) || defined(__SUNPRO_CC) 00205 #include "sunprofeatures.h" 00206 #elif defined(__OPEN64__) 00207 #include "open64features.h" 00208 #elif defined(__clang__) 00209 #include "clangfeatures.h" 00210 #elif defined(__GNUC__) 00211 #include "gccfeatures.h" 00212 #elif defined(__PGI) 00213 #include "pgccfeatures.h" 00214 #elif defined(_MSC_FULL_VER) 00215 #include "msvcfeatures.h" 00216 #else 00217 #error "Can't identify compiler. You'll need to add a new xxfeatures.hpp" 00218 { /* maybe an unbalanced brace will terminate the compilation */ 00219 #endif 00220 00221 #ifndef R123_USE_CXX11 00222 #define R123_USE_CXX11 (__cplusplus >= 201103L) 00223 #endif 00224 00225 #ifndef R123_USE_CXX11_UNRESTRICTED_UNIONS 00226 #define R123_USE_CXX11_UNRESTRICTED_UNIONS R123_USE_CXX11 00227 #endif 00228 00229 #ifndef R123_USE_CXX11_STATIC_ASSERT 00230 #define R123_USE_CXX11_STATIC_ASSERT R123_USE_CXX11 00231 #endif 00232 00233 #ifndef R123_USE_CXX11_CONSTEXPR 00234 #define R123_USE_CXX11_CONSTEXPR R123_USE_CXX11 00235 #endif 00236 00237 #ifndef R123_USE_CXX11_EXPLICIT_CONVERSIONS 00238 #define R123_USE_CXX11_EXPLICIT_CONVERSIONS R123_USE_CXX11 00239 #endif 00240 00241 #ifndef R123_USE_CXX11_RANDOM 00242 #define R123_USE_CXX11_RANDOM R123_USE_CXX11 00243 #endif 00244 00245 #ifndef R123_USE_CXX11_TYPE_TRAITS 00246 #define R123_USE_CXX11_TYPE_TRAITS R123_USE_CXX11 00247 #endif 00248 00249 #ifndef R123_USE_CXX11_LONG_LONG 00250 #define R123_USE_CXX11_LONG_LONG R123_USE_CXX11 00251 #endif 00252 00253 #ifndef R123_USE_MULHILO64_C99 00254 #define R123_USE_MULHILO64_C99 0 00255 #endif 00256 00257 #ifndef R123_USE_MULHILO64_MULHI_INTRIN 00258 #define R123_USE_MULHILO64_MULHI_INTRIN 0 00259 #endif 00260 00261 #ifndef R123_USE_MULHILO32_MULHI_INTRIN 00262 #define R123_USE_MULHILO32_MULHI_INTRIN 0 00263 #endif 00264 00265 #ifndef R123_STATIC_ASSERT 00266 #if R123_USE_CXX11_STATIC_ASSERT 00267 #define R123_STATIC_ASSERT(expr, msg) static_assert(expr, msg) 00268 #else 00269 /* if msg always_looked_like_this, we could paste it into the name. Worth it? */ 00270 #define R123_STATIC_ASSERT(expr, msg) typedef char static_assertion[(!!(expr))*2-1] 00271 #endif 00272 #endif 00273 00274 #ifndef R123_CONSTEXPR 00275 #if R123_USE_CXX11_CONSTEXPR 00276 #define R123_CONSTEXPR constexpr 00277 #else 00278 #define R123_CONSTEXPR 00279 #endif 00280 #endif 00281 00282 #ifndef R123_USE_PHILOX_64BIT 00283 #define R123_USE_PHILOX_64BIT (R123_USE_MULHILO64_ASM || R123_USE_MULHILO64_MSVC_INTRIN || R123_USE_MULHILO64_CUDA_INTRIN || R123_USE_GNU_UINT128 || R123_USE_MULHILO64_C99 || R123_USE_MULHILO64_OPENCL_INTRIN || R123_USE_MULHILO64_MULHI_INTRIN) 00284 #endif 00285 00286 #ifndef R123_ULONG_LONG 00287 #if defined(__cplusplus) && !R123_USE_CXX11_LONG_LONG 00288 /* C++98 doesn't have long long. It doesn't have uint64_t either, but 00289 we will have typedef'ed uint64_t to something in the xxxfeatures.h. 00290 With luck, it won't elicit complaints from -pedantic. Cross your 00291 fingers... */ 00292 #define R123_ULONG_LONG uint64_t 00293 #else 00294 #define R123_ULONG_LONG unsigned long long 00295 #endif 00296 #endif 00297 00298 /* UINT64_C should have been #defined by XXXfeatures.h, either by 00299 #include <stdint.h> or through compiler-dependent hacks */ 00300 #ifndef R123_64BIT 00301 #define R123_64BIT(x) UINT64_C(x) 00302 #endif 00303 00304 #ifndef R123_THROW 00305 #define R123_THROW(x) throw (x) 00306 #endif 00307 00308 /* 00309 * Windows.h (and perhaps other "well-meaning" code define min and 00310 * max, so there's a high chance that our definition of min, max 00311 * methods or use of std::numeric_limits min and max will cause 00312 * complaints in any program that happened to include Windows.h or 00313 * suchlike first. We use the null macro below in our own header 00314 * files definition or use of min, max to defensively preclude 00315 * this problem. It may not be enough; one might need to #define 00316 * NOMINMAX before including Windows.h or compile with -DNOMINMAX. 00317 */ 00318 #define R123_NO_MACRO_SUBST 00319
