Xcode 7 Debug Field Pointer Tool Address sanitizer

What is address sanitizer?

Addresssanitizer is a fast memory error detector. IT consists of a compiler instrumentation module and a run-time library. The tool can detect the following types of bugs:

Out-of-bounds accesses to heap, stack and globals
Use-after-free
Use-after-return (To some extent)
Double-free, Invalid free
Memory Leaks (experimental)

总结来说：**用来解决内存问题的**。当发生Crash时，打印这个Crash内存的使用记录。通过这个使用记录来调试Bug。

How do I use it in Xcode?

1. You need to install the Xcode7
2. Open the settings in Xcode7.
   
3. Copy memory address after crash occurs
   
4. Check memory view options: View Memories
   
5. Enter the memory address just now
   
6. Click on the list on the right to see the memory call log.
   
7. Solve the problem according to the record.

Xcode 7 Debug Field Pointer Tool Address sanitizer