/* c++ MEX文件for MATLAB * returnbj = multiplyAllElements(obj, multiplier)修改对象属性。*将obj中的所有元素相乘。数据乘法器。* *类方法实现为MEX函数* */ #include " MEX .hpp" #include "mexAdapter.hpp"使用matlab:: MEX::ArgumentList;使用命名空间matlab::data;类MexFunction:公共matlab::mex::Function {std::shared_ptr matlabPtr = getEngine();public: void操作符()(ArgumentList输出，ArgumentList输入){checkArguments(输出，输入);数组对象(输入[0]);双倍增器=输入[1][0];assignProperty(对象、乘数);//返回修改后的对象输出[0]= object; } void assignProperty(Array& obj, double multiplier) { // Get matrix from Data property TypedArray inMatrix = matlabPtr->getProperty(obj, u"Data"); // Multiply matrix by multiplier for (auto& elem : inMatrix) { elem *= multiplier; } // Set the property value matlabPtr->setProperty(obj, u"Data", inMatrix); } void checkArguments(matlab::mex::ArgumentList outputs, matlab::mex::ArgumentList inputs) { matlab::data::ArrayFactory factory; if (inputs.size() != 2) { matlabPtr->feval(u"error", 0, std::vector({ factory.createScalar("Two inputs required") })); } if ((inputs[1].getType() != matlab::data::ArrayType::DOUBLE) || (inputs[1].getNumberOfElements() != 1)) { matlabPtr->feval(u"error", 0, std::vector({ factory.createScalar("Input multiplier must be a noncomplex scalar double") })); } } };