defines.h

/*
 This Source Code Form is subject to the terms of the Mozilla Public
 License, v. 2.0. If a copy of the MPL was not distributed with this
 file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
 
 
#pragma once
 
// Compatibility types, macros, functions
//
#ifdef __CUDACC__
# include <cuda.h>
# define PONCA_MULTIARCH __host__ __device__
# define PONCA_MULTIARCH_HOST __host__
#else
# define PONCA_MULTIARCH
# define PONCA_MULTIARCH_HOST
 
// GCC: compile with -std=c++0x
# if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || (__GNUC__ >= 5))
#   if defined(nullptr_t) || (__cplusplus > 199711L) || defined(HACK_GCC_ITS_CPP0X)
#     define __CPP0X__
#   endif
# endif
 
#endif // ifdef __CUDACC__
 
#ifdef __CUDA_ARCH__
  #define PONCA_MULTIARCH_INCLUDE_STD(FILENAME) "defines.h"
  #define PONCA_MULTIARCH_STD_MATH(FUNC)
  #define PONCA_MULTIARCH_STD_MATH_NAMESPACE(FUNC) FUNC
 
  //see https://nvidia.github.io/libcudacxx/standard_api.html
  #define PONCA_MULTIARCH_CU_STD_NAMESPACE(FUNC) cuda::std::FUNC
  #define PONCA_MULTIARCH_INCLUDE_CU_STD(FILENAME) <cuda/std/FILENAME>
 
  #define PONCA_CUDA_ARCH
#else
  #define PONCA_MULTIARCH_INCLUDE_STD(FILENAME) <FILENAME>
  #define PONCA_MULTIARCH_STD_MATH(FUNC) using std::FUNC;
  #define PONCA_MULTIARCH_STD_MATH_NAMESPACE(FUNC) std::FUNC
  #define PONCA_MULTIARCH_CU_STD_NAMESPACE(FUNC) std::FUNC
  #define PONCA_MULTIARCH_INCLUDE_CU_STD(FILENAME) <FILENAME>
  #define PONCA_CPU_ARCH
#endif
 
#ifndef PONCA_DEBUG
#define STD_SAFE_AT(C,i) C[i]
#else
#define STD_SAFE_AT(C,i) C.at(i)
#endif
 
namespace Ponca
{
    template <typename T, typename = void>
    struct hasNormal : std::false_type {};
 
    template <typename T>
    struct hasNormal<T, std::void_t<decltype(std::declval<T>().normal())>> : std::true_type {};
} // namespace Ponca