#ifndef MANDEL_ITERATIONFORMULA_H #define MANDEL_ITERATIONFORMULA_H namespace mnd { struct IterationFormula; struct Addition; struct Multiplication; struct Division; struct Pow; } struct mnd::IterationFormula { }; struct mnd::Addition : IterationFormula { bool subtraction = false; }; struct mnd::Multiplication : IterationFormula { }; struct mnd::Division : IterationFormula { }; struct mnd::Pow : IterationFormula { }; #endif // MANDEL_ITERATIONFORMULA_H