megenginelite-sys 1.8.2

A safe megenginelite wrapper in Rust
Documentation 
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/**
 * \file dnn/src/naive/elemwise/kern_impl.inl
 * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 *
 * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */

#pragma once

#ifndef KERN_IMPL_MODE
#error "KERN_IMPL_MODE, KERN_IMPL_ARITY and KERN_IMPL_CTYPE must be defined"
#endif

#include "./kern_caller.h"
#include "megdnn/tensor_iter.h"

namespace megdnn {
namespace naive {

template <class KernImpl>
struct ElemArithKernCaller<1, KernImpl> {
    typedef typename KernImpl::ctype ctype;
    static void run(ctype* dest, const ElemwiseOpParamN<1>& param) {
        auto iter0 = tensor_iter_valonly<ctype>(param[0]).begin();
        for (size_t i = 0; i < param.size; ++i) {
            dest[i] = KernImpl::apply(*iter0);
            ++iter0;
        }
    }
};
template <class KernImpl>
struct ElemArithKernCaller<2, KernImpl> {
    typedef typename KernImpl::ctype ctype;
    static void run(ctype* dest, const ElemwiseOpParamN<2>& param) {
        auto iter0 = tensor_iter_valonly<ctype>(param[0]).begin();
        auto iter1 = tensor_iter_valonly<ctype>(param[1]).begin();
        for (size_t i = 0; i < param.size; ++i) {
            dest[i] = KernImpl::apply(*iter0, *iter1);
            ++iter0;
            ++iter1;
        }
    }
};
template <class KernImpl>
struct ElemArithKernCaller<3, KernImpl> {
    typedef typename KernImpl::ctype ctype;
    static void run(ctype* dest, const ElemwiseOpParamN<3>& param) {
        auto iter0 = tensor_iter_valonly<ctype>(param[0]).begin();
        auto iter1 = tensor_iter_valonly<ctype>(param[1]).begin();
        auto iter2 = tensor_iter_valonly<ctype>(param[2]).begin();
        for (size_t i = 0; i < param.size; ++i) {
            dest[i] = KernImpl::apply(*iter0, *iter1, *iter2);
            ++iter0;
            ++iter1;
            ++iter2;
        }
    }
};

#define cb(_m)                                                           \
    template struct ElemArithKernCaller<                                 \
            KERN_IMPL_ARITY,                                             \
            ElemwiseKern<                                                \
                    megcorePlatformCPU, param_enumv::Elemwise::Mode::_m, \
                    KERN_IMPL_CTYPE>>;

KERN_IMPL_MODE(cb)

}  // namespace naive
}  // namespace megdnn

// vim: syntax=cpp.doxygen