Cookbook, n. a book containing recipes and other information about the preparation and cooking of food. A Cookbook is an invaluable resource, as it shows how to do various things in a clear fashion without all the theoretical context. Sometimes you just need to look things up. While cookbooks can never replace proper documentation such as the HyperSpec or books such as Practical Common Lisp, every

抽象型メンバーとジェネリクスのカンケイ in Scala

First-class (run-time) macros and meta-circular evaluation First-class macros are macros that can be bound to variables, passed as arguments and returned from functions. First-class macros expand and evaluate syntax at run-time. Meta-circular evaluators support a concise implementation of first-class macros. In fact, first-class macros are easier to implement than traditional compile-time macros.

hyotang666.github.io

A Practical Intro to Macros in Rust 1.0 One feature of Rust that I'm rather enamoured with is its macro system. Known as "macro by example" (MBE) or sometimes referred to as macro_rules, it provides you with an impressive amount of power whilst not allowing for the sort of evil tricks you can pull in C/C++. The purpose of this article is to go through the process by which I wrote one particular ma

どうも，昨日で22歳になりました．もはやアラサーですよアラサー． sshのXForwardingでGUIなプログラムをリモート実行できますね．すごく便利です． そのやり方については他を参照のこと．リモートのsshd_configのX11Fowardingをyesにしてssh -Xで入るだけです． で，ふつうのXプログラムはできるのにGLUTなプログラムができなくて困ってました． 症状としてはこんなかんじ % aglutprog.out freeglut (aglutprog.out): ERROR: Internal error <FBConfig with necessary capabilities not found> in function fgOpenWindow X Error of failed request: BadWindow (invalid Window param

井上涼 / INOUE Ryo アーティスト。金沢美術工芸大学卒業。「赤ずきんと健康」でBACA-JA2001映像コンテンツ部門で佳作受賞。作品に合わせた音楽はみずから作詞・作曲・歌唱まで手がけ、独自の世界を繰り広げている。 Follow @kitsutsukijanai

% gem install hanami Successfully installed hanami-2.2.0 3 gems installed % hanami new bookshelf Created bookshelf/ -> Within bookshelf/ -> # ... -> Running Bundler install... -> Running NPM install... -> Running Hanami install... % git init . && git add . && git commit -m "Initial commit" [main (root-commit) 629fc96] Initial commit 33 files changed, 1430 insertions(+) % heroku apps:create Creatin