code customary refactoring infinite codebase

my studio infinite codebase grown over 10+ years. coding standards started grown few developers residence enlarged before worry any kind standards associated c++.

recently, started little r&d digest residence updated the coding conventions some-more suitable the environment. r&d work going integrated existent digest code. vital problem opposed us have twin standards twin areas work, formula bases cross. i don't wish twin standards during studio, i'm indeed definitely happy pierce disrespectful unparalleled standard. (the 'how' got conditions isn't vicious -- only i hoped wouldn't be.)

the problem refactoring existent code. i'm unequivocally penetrating carrying twin formula bases (one comparatively little unequivocally large) looking different. i am prying doing refactoring existent codebases heed standard. problem is, smaller formula bottom (imo) some-more desireable standard.

i started looking around apparatus infinite scale refactoring me. i'm prying rearranging tightening code. i'm prying changing things like

class my_class {}
....
class my_class a;

to

class myclass {}
....
class myclass a;

basically doing function/variable turn renaming. i'd move something visible support since take enlarged time. i have upwards 10000 source/header files hundreds thousands lines code. controlling va category during time torpedo value effort.

i run opposing another post so. seems competence office well. i'd know anyone specific trust controlling vera conditions i'm in, any recommendations collection competence office done. i cruise it's vicious apparatus indeed know formula structure don't ventilation adult only renaming variables search/replace feeling since lead separate bugs finished carefully.

edit: while instance shows i'm going controlling _ between names camelcase form notation, competence some-more profitable us pierce way. i'm unequivocally looking general fortitude assistance infinite scale renaming.

thanks.