//===----------------------------------------------------------------------===//
//
// Part of libcu++, the C++ Standard Library for your entire system,
// under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//

// Modifications Copyright (c) 2025 Advanced Micro Devices, Inc.
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#ifndef __CCCL_EXTENDED_FLOATING_POINT_H
#define __CCCL_EXTENDED_FLOATING_POINT_H

#include <cuda/std/__cccl/compiler.h>
#include <cuda/std/__cccl/system_header.h>

#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
#  pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
#  pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
#  pragma system_header
#endif // no system header

#include <cuda/std/__cccl/diagnostic.h>

#ifndef __has_include
#  define __has_include(x) 0
#endif // !__has_include

#if !defined(_CCCL_HAS_NVFP16)
#  if __has_include(<cuda_fp16.h>)                                              \
    && (defined(_CCCL_CUDA_COMPILER) || defined(LIBCUDACXX_ENABLE_HOST_NVFP16)) \
    && !defined(CCCL_DISABLE_FP16_SUPPORT)
#    define _CCCL_HAS_NVFP16 1
#  endif
#if defined(__HIP_PLATFORM_AMD__)
#  if __has_include(<hip/hip_bf16.h>)                                              \
    && (defined(_CCCL_CUDA_COMPILER) || defined(_CCCL_HIP_COMPILER) || defined(LIBCUDACXX_ENABLE_HOST_NVFP16)) \
    && !defined(CCCL_DISABLE_FP16_SUPPORT)
#    define _CCCL_HAS_NVFP16 1
#  endif
#endif
#endif // !_CCCL_HAS_NVFP16
#if !defined(_CCCL_HAS_NVBF16)
#  if __has_include(<cuda_bf16.h>)         \
    && defined(_CCCL_HAS_NVFP16)           \
    && !defined(CCCL_DISABLE_BF16_SUPPORT) \
    && !defined(CUB_DISABLE_BF16_SUPPORT)
#    define _CCCL_HAS_NVBF16 1
#  endif
#if defined(__HIP_PLATFORM_AMD__)
#  if __has_include(<hip/hip_fp16.h>)         \
    && defined(_CCCL_HAS_NVFP16)           \
    && !defined(CCCL_DISABLE_BF16_SUPPORT) \
    && !defined(CUB_DISABLE_BF16_SUPPORT)
#    define _CCCL_HAS_NVBF16 1
#  endif
#endif
#endif // !_CCCL_HAS_NVBF16

#if defined(_CCCL_HAS_NVFP16)
#if defined(__HIP_PLATFORM_AMD__)
#  include <hip/hip_fp16.h>
#else
#  include <cuda_fp16.h>
#endif
#endif // _CCCL_HAS_NVFP16

#if defined(_CCCL_HAS_NVBF16)
_CCCL_DIAG_PUSH
_CCCL_DIAG_SUPPRESS_CLANG("-Wunused-function")
#if defined(__HIP_PLATFORM_AMD__)
#if !defined(_CCCL_COMPILER_HIPRTC)
#include <cstdint>
#include <hip/hip_runtime.h>
#endif
#  include <hip/hip_bf16.h>
#else
#  include <cuda_bf16.h>
#endif
_CCCL_DIAG_POP
#endif // _CCCL_HAS_NVFP16

#endif // __CCCL_EXTENDED_FLOATING_POINT_H
