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1/*===---- cmath - CUDA wrapper for <cmath> ---------------------------------===2 *3 * Permission is hereby granted, free of charge, to any person obtaining a copy4 * of this software and associated documentation files (the "Software"), to deal5 * in the Software without restriction, including without limitation the rights6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell7 * copies of the Software, and to permit persons to whom the Software is8 * furnished to do so, subject to the following conditions:9 *10 * The above copyright notice and this permission notice shall be included in11 * all copies or substantial portions of the Software.12 *13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN19 * THE SOFTWARE.20 *21 *===-----------------------------------------------------------------------===22 */23 24#ifndef __CLANG_CUDA_WRAPPERS_CMATH25#define __CLANG_CUDA_WRAPPERS_CMATH26 27#if __has_include_next(<cmath>)28#include_next <cmath>29#else30#error "Could not find standard C++ header 'cmath'. Add -v to your compilation command to check the include paths being searched. You may need to install the appropriate standard C++ library package corresponding to the search path."31#endif32 33#if defined(_LIBCPP_STD_VER)34 35// libc++ will need long double variants of these functions, but CUDA does not36// provide them. We'll provide their declarations, which should allow the37// headers to parse, but would not allow accidental use of them on a GPU.38 39__attribute__((device)) long double logb(long double);40__attribute__((device)) long double scalbn(long double, int);41 42#endif // _LIBCPP_STD_VER43 44#endif // include guard45