在LLDB中查看数组：相当于Xcode 4.1中GDB的“@”运算符 [英] View array in LLDB: equivalent of GDB's '@' operator in Xcode 4.1

问题描述

我想查看指针指向的元素数组。在GDB中，可以使用运算符@作为一个给定长度的人造数组来处理指针记忆，作为

  *指针@长度
  

其中长度是要查看的元素数量。

上述语法在Xcode 4.1附带的LLDB中不起作用。

有没有办法如何在LLDB中完成上述？

解决方案

实际上有一个简单的方式来做，通过投射指针指向数组。

例如，如果你有一个 int * ptr ，你想把它看成是一个十个整数的数组，你可以做

  p *（int（*）[10]） ptr 
  

由于它仅依赖于标准C功能，因此该方法无需任何插件或特殊设置，与其他调试器（如GDB或CDB）配合使用，尽管后两者具有此类功能的专用语法>

I would like to view an array of elements pointed to by a pointer. In GDB this can be done by treating the pointed memory as an artificial array of a given length using the operator '@' as

*pointer @ length

where length is the number of elements I want to view.

The above syntax does not work in LLDB supplied with Xcode 4.1.

Is there any way how to accomplish the above in LLDB?

解决方案

Actually there is a simple way to do it, by casting the pointer to a pointer-to-array.

For example, if you have a int* ptr, and you want to view it as an array of ten integers, you can do

p *(int(*)[10])ptr

Because it relies only on standard C features, this method works without any plugins or special settings, and works with other debuggers like GDB or CDB, even though the latter two has specialized syntax for such thing.

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