try
{
...
}
catch(Exception ex)
{
//if this happens the world is going to end...
}

现在猜猜发生了什么……

场景一:

return 0; // Happy ending

场景二:

int32_t Interpolate1DSignal(
  Array1D<float64>::Handle hfInputSamples,         // samples to be interpolated
  Array1D<float64>::Handle hfInterpolationFilter,  // polyphase filter coefficients,
  int32_t iFilterInterpolationFactor,              // # of "rows" in polyphase filter
  int32_t iFilterLength,                           // Length of each row in filter
  float64 fInterpolationFactor,                    // Factor to interpolate the
                                                   // signal by
  float64 fTimingOffset,                           // Offset into the signal (units   
                                                   // of samples)
  Array1D<float64>::Handle hfOutputSamples         // left as an exercise for the reader
);

写得很好的Lisp是最容易阅读的语言之一，我喜欢它。但是写得不好的Lisp可能是比糟糕的Java更糟糕的噩梦，等等。

在这里，我们需要创建一个“组文件”，如果一个原始文件有3个变体，后缀为a, b和c。我一直试图追踪一个奇怪的错误，我们得到了不必要的组文件……

  (let ((varianta (format nil "~aa" problem))
        (variantb (format nil "~ab" problem))
        (variantc (format nil "~ac" problem)))
    ;;if the A and B variants exist, create a group file
    ;;(why not just check for a? I don't know, this just feels right)
    (when (and (probe-file varianta)
               (probe-file variantb))
      ...)))

Bug: 1, Gut: 0。

显然，写这篇文章的人没有想到，也许检查所有三种变体是一个好主意。当然，这是我在最初编写这段代码十年之后(它比第一个SVN日志更早)最终追踪到的错误。

从Joomla !来源:

// this is daggy??

//说明:!!待办事项

// fix for groupid > 9 
// if groupid ever gets to 100 everything will break (again)

if (groupid < 10) {
groupid = "0" + groupid;
}