Dispatch.h

Go to the documentation of this file.

// ----------------------------------------------------------------------------
// -                        Open3D: www.open3d.org                            -
// ----------------------------------------------------------------------------
// The MIT License (MIT)
//
// Copyright (c) 2018 www.open3d.org
//
// 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.
// ----------------------------------------------------------------------------

#pragma once

#include "Open3D/Core/Dtype.h"
#include "Open3D/Utility/Console.h"

#define DISPATCH_DTYPE_TO_TEMPLATE(DTYPE, ...)               \
    [&] {                                                    \
        switch (DTYPE) {                                     \
            case open3d::Dtype::Float32: {                   \
                using scalar_t = float;                      \
                return __VA_ARGS__();                        \
            }                                                \
            case open3d::Dtype::Float64: {                   \
                using scalar_t = double;                     \
                return __VA_ARGS__();                        \
            }                                                \
            case open3d::Dtype::Int32: {                     \
                using scalar_t = int32_t;                    \
                return __VA_ARGS__();                        \
            }                                                \
            case open3d::Dtype::Int64: {                     \
                using scalar_t = int64_t;                    \
                return __VA_ARGS__();                        \
            }                                                \
            case open3d::Dtype::UInt8: {                     \
                using scalar_t = uint8_t;                    \
                return __VA_ARGS__();                        \
            }                                                \
            default:                                         \
                utility::LogError("Unsupported data type."); \
        }                                                    \
    }()

#define DISPATCH_DTYPE_TO_TEMPLATE_WITH_BOOL(DTYPE, ...)    \
    [&] {                                                   \
        if (DTYPE == open3d::Dtype::Bool) {                 \
            using scalar_t = bool;                          \
            return __VA_ARGS__();                           \
        } else {                                            \
            DISPATCH_DTYPE_TO_TEMPLATE(DTYPE, __VA_ARGS__); \
        }                                                   \
    }()