Method releaseMemoryForHostTensor

express/Utils.cpp:113–123

    return dest->buffer().host != nullptr;
}
bool Utils::releaseMemoryForHostTensor(Tensor* dest) {
    if (nullptr == dest->buffer().host) {
        return true;
    }
    if (TensorUtils::getDescribe(dest)->memoryType != Tensor::InsideDescribe::MEMORY_HOST) {
        return false;
    }
    MNNMemoryFreeAlign(dest->buffer().host);
    dest->buffer().host = nullptr;
    return true;
}
Tensor* Utils::getTensor(VARP var) {
    return (Tensor*)(var->getTensor());
}