November 2012
Intermediate to advanced
888 pages
54h 46m
Polish
Content preview from Ruby. Receptury
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22.1. Pisanie rozszerzeń w języku C dla języka Ruby
Podziękowania dla Garretta Rooneya
Problem
Chcemy zaimplementować część programu Ruby w języku C. Może to być fragment programu, który powinien działać szczególnie szybko lub zawierać kod specyficzny dla określonej platformy. Może też się zdarzyć, że ktoś wcześniej napisał pewien kod w języku C i nie chce pisać go ponownie w języku Ruby.
Rozwiązanie
Można napisać rozszerzenie w języku C, które implementuje tę część programu. Należy skompilować je za pomocą skryptu extconf.rb i włączyć do programu Ruby tak, jak bibliotekę w języku Ruby. Aby to zrobić, trzeba zainstalować w systemie pliki nagłówkowe języka Ruby.
Oto prosty program w Ruby, w którym włączono bibliotekę o nazwie przyklad ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.