Using Emacs - 32 - C++

This video is specifically for my students or any students out there who are starting with C++ and emacs. The videos also longer than usual, coming in at a little over 20 minutes.

The big difference is instead of building on my existing config, the code at the bottom is a complete standalone configuration. It's all pulled from the main config with one additional package.

By taking the code at the bottom and putting in into a file named init.el in a directory off of your home directory named .emacs.d and run emacs, it will install everything and you'll be good to go.

If you've been following this series, the only new package is ggtags and the configuration code is:

;; tags for code navigation
(use-package ggtags
  :ensure t
  :config 
  (add-hook 'c-mode-common-hook
	    (lambda ()
	      (when (derived-mode-p 'c-mode 'c++-mode 'java-mode)
		(ggtags-mode 1))))
  )

For people new to the series, the top section sets up the emacs package manager. After that we install:

The video also show me using counsel-ag which is part of the swiper/counsel package. You can check that out here as well as some other packages I use like smartparens, hungry-delete and probably a few more.

You can look at my complete configuration or the other videos for details.

If you're an experienced C++ developer and use emacs, please share tips, tricks, and suggestions. I haven't done serious C++ work in over a decade and while I did professional development in C in a past life, never in C++.

The packages used here are not C++ specific - I use them for Java, Python, Clojure, and Javascript development as well.

Here's the configuration code:

;; set up package sources
(require 'package)
(setq package-enable-at-startup nil)
(add-to-list 'package-archives
	     '("melpa" . "https://melpa.org/packages/"))
(package-initialize)

;; Bootstrap `use-package'
(unless (package-installed-p 'use-package)
  (package-refresh-contents)
  (package-install 'use-package))

;; small interface tweaks
(setq inhibit-startup-message t)
(tool-bar-mode -1)
(fset 'yes-or-no-p 'y-or-n-p)
(global-set-key (kbd "<f5>") 'revert-buffer)

;; bring up help for key bindings
(use-package which-key
  :ensure t 
  :config
  (which-key-mode))


;; Auto completion
(use-package auto-complete
  :ensure t
  :init
  (progn
    (ac-config-default)
    (global-auto-complete-mode t)
    ))


;; on the fly syntax checking
(use-package flycheck
  :ensure t
  :init
  (global-flycheck-mode t))

;; snippets and snippet expansion
(use-package yasnippet
  :ensure t
  :init
  (yas-global-mode 1))


;; tags for code navigation
(use-package ggtags
  :ensure t
  :config 
  (add-hook 'c-mode-common-hook
	    (lambda ()
	      (when (derived-mode-p 'c-mode 'c++-mode 'java-mode)
		(ggtags-mode 1))))
  )


;; Theme
(use-package color-theme
  :ensure t)
(use-package moe-theme
  :ensure t)
(moe-light)

Enjoy.

Relevant links:

• Video series overview page:
  • http://cestlaz.github.io/stories/emacs
• Code:
  • https://github.com/zamansky/using-emacs/tree/master