Heinlein, ChristianDadam, PeterReichert, Manfred2019-10-112019-10-1120043-88579-380-6https://dl.gi.de/handle/20.500.12116/28811The paper presents the basic concepts of C+++, an extension of C++ allowing the programmer to define new operator symbols with user-defined priorities by specifying a partial precedence relationship. Furthermore, so-called flexary operators accepting any number of operands and operators with lazily evaluated operands are supported. The latter are particularly useful to implement new kinds of control structures.enText/Conference Paper1617-5468