Function cppMatrixArgToRArg

src/attributes.cpp:2672–2684

convert a C++ Matrix to an R argument (returns empty string if no conversion possible)

        // convert a C++ Matrix to an R argument (returns empty string
        // if no conversion possible)
        std::string cppMatrixArgToRArg(const std::string& cppArg) {

            // look for Matrix
            std::string matrix = "Matrix";
            size_t matrixLoc = cppArg.find(matrix);
            if (matrixLoc == std::string::npos ||
                ((matrixLoc + matrix.length()) >= cppArg.size())) {
                return std::string();
            }

            std::string args = cppArg.substr(matrixLoc + matrix.length());
            return "matrix" + args;				// #nocov end
        }

        // convert a C++ literal to an R argument (returns empty string
        // if no conversion possible)