你遇到过的源代码中最好的注释是什么?


当前回答

在OLTP数据库事务的主要触发代码中找到:

-- This line negates the @inverseqty, which is the
-- negative of the @insertedquantity.  This works through the
-- magic of the trigger.  In fact, this code is a lot like
-- the bermuda triangle!
@negquantity = -1 * @inverseqty

其他回答

Many years ago (about 1994) I was working on a Oracle PRO*C application for a large multi-national software company that you will have heard of. The app I was working on was a massive Oracle application and they had a utility that ran overnight tidying up data and doing all sorts of aggregate calculations. Every time anything needed doing as a batch job, it got shoved into this utility and as you can imagine it became an absolute monstrosity. It was also notable for the tiny number of comments that it had for such a massive program.

它为数不多的评论之一仍然是我所见过的对纯粹的WTF的最好的评论……我试图在一个函数中找到一个bug,它有数百行长,中间是函数中唯一的注释:

/* I did this the other way */

直到今天,这仍然是我所见过的最好的评论。

在linux 1.0内核调度器(schedule .c)中:

Dijkstra可能讨厌我。

/*
 *  'schedule()' is the scheduler function. It's a very simple and nice
 * scheduler: it's not perfect, but certainly works for most things.
 * The one thing you might take a look at is the signal-handler code here.
 *
 *   NOTE!!  Task 0 is the 'idle' task, which gets called when no other
 * tasks can run. It can not be killed, and it cannot sleep. The 'state'
 * information in task[0] is never used.
 *
 * The "confuse_gcc" goto is used only to get better assembly code..
 * Dijkstra probably hates me.
 */
asmlinkage void schedule(void)

(…)

// Bad Christian, No cookie

这里的Cookie不是指浏览器Cookie

当被问及什么是“最好的评论”时,我们的回答都是我们能找到的最糟糕的评论,这充分说明了我们的职业……

  rescue
    # silently, we fail
    # many validations fade
    # like tear drops in rain
  end

这只是众多案例中的一个……