Function operator -

fem/code_generation.cpp:311–311

        std::vector<string> CCode::expressions;
        CCode operator -(int val, const CCode &c) { return CCode(1.0*val)-c; }
        CCode operator *(int val, const CCode &c) { return CCode(1.0*val)*c; }
        CCode operator -(double val, const CCode &c) { return CCode(val)-c; }
        CCode operator *(double val, const CCode &c) { return CCode(val)*c; }