My init.el

gistfile1.el

(c-add-style "custom-C++"
             '("stroustrup"

               (c-indent-comments-syntactically-p 1)
               (c-offsets-alist
                (substatement-open . 0)
                (defun-open . 0)
                (defun-close . 0)
                (defun-block-intro . 4)
                (class-open . 0)
                (class-close . 0)
                (inclass . 4)
                (access-label . -4)
                (comment-intro . 0)
                (c . 1)
                (inline-open . 0)
                (inline-close . 0)
                (innamespace . 0)
                ;(statement . 4)
                )
                ;; (c-indent-comment-alist
                ;; (empty-line column . 0)
                ;; (anchored-comment align . 0))
               (setq indent-tabs-mode nil)
               (setq c-basic-offset 4)
                )
             )

(defun custom_c++_mode_hook()
  (c-set-style "custom-C++")
  (show-paren-mode))
(add-hook 'c++-mode-hook 'custom_c++_mode_hook)


(defun reload-config()
  (interactive)
  (load-file "~/.emacs"))

(defun edit-config()
  (interactive)
  (find-file "~/.emacs.d/init.el"))

(column-number-mode)

(require 'whitespace)
(setq whitespace-style '(face tabs lines-tail))
;; (setq whitespace-display-mappings '(
;;                                    (space-mark 32 [187 9])
;;                                    (newline-mark 10 [187 9])
;;                                    (tab-mark 9 [187 9])))
(setq whitespace-line-column 100)
(global-whitespace-mode t)

;(setq-default c-basic-offset 4)
;(c-set-offset 'substatement-open 0)
;(setq-default c-default-style "linux")
(setq-default indent-tabs-mode nil)