linux - Print messages in kernel module using c++ -


I am editing a kernel module written in C ++ I want a function to print a message, but I think I can not use the cout or any standard input / output stream library function because the module stays in the kernel space.

I have tried to include iostream library: 

  .... #include   
 When I compile with  G ++ :  
  Error: iostream: Any such file Or directory is not error: 'Cout' was not declared in this area    
 
 
 The Linux kernel does not support C ++ very well, and you can  & lt; Iostream & gt;  - I suspect that none of the STLs are completely out of the question, but since I have seen in C ++ Linux kernel mode  
  The standard implementation of cout  and  cerr  are using OS features, which will definitely not work inside the kernel. So you should not use them, it would be possible to implement anything that works the same way (call it  kostream ), and  kostream & amp; Operator & lt; & Lt; (Kostream & os, sometype value) , which produces some output in the buffer, then use  printk  or some preferences that are  printk  To produce the actual output  
 Whether it is C or C ++, you can finally print  printk  (or its components) to print things in the Linux kernel. Parts) can be used.  
 Note that the use of  fstream  or  stringstream  is not also working inside the kernel.

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