why purify tool shows an IPR error on the "throw true" statement?

Question

while doing an memory checkup with purifier, it is showing an IPR error on the following statement.

 throw true;

What could be the issue?

void Myfunc(char *p_trace_id,char *p_session_id,int &p_roam_flag)
{
   try
   {
      int set_id=0;

      if(0 == set_id)
         throw true;
   }

   catch(bool p_return_value)
   {
      if(!p_return_value)
      {
         g_Log.log(DEBUG, p_trace_id ,"[%s] %s<Line: %d> ", p_session_id ,__FUNCTION__,__LINE__);

         p_roam_flag = 0;
      }
   }
   catch(...)
   {
      g_Log.log(DEBUG, p_trace_id ,"[%s] %s<Line: %d> ", p_session_id ,__FUNCTION__,__LINE__);
   }
}

As per my analysis, there is issue in older version of purify. But i am using latest version.

Purify V7.0
Solaris V5.0

That code is syntactically incorrect. Did your copy-and-paste key malfunction? — molbdnilo, Feb 11 '16 at 10:26
The rule 'don't use exceptions for flow control' is much over-cited, way beyond its original purpose (and yes I was there when it started), and there are few live examples of why you should not do so within a method, but this is certainly one of them. There is no reason to use `throw true` here at all, and no reason why the entire `catch (bool ...)` block can't be immediately after the `if` statement. Don't write code like this.. — user207421, Feb 11 '16 at 10:36
@EJP I will try to follow this, but i felt like returning the code at beginning of the function after checking pre-condition as something odd. — VINOTH ENERGETIC, Feb 11 '16 at 11:33
@VinothKumar Try a 32-bit compile and see if you still get the error. See http://www-01.ibm.com/support/docview.wss?uid=swg1PQ92064 — Andrew Henle, Feb 12 '16 at 09:48
@AndrewHenle But i ran the sample program with try and catch and compiled as 64 bit. But i am not getting any error in purifier. — VINOTH ENERGETIC, Feb 12 '16 at 10:01
Is the sample program the same as the program you posted in your question? — Andrew Henle, Feb 12 '16 at 13:42
@AndrewHenle No. But i wrote the same similar code like this.. Do you want to attach the sample code. — VINOTH ENERGETIC, Feb 15 '16 at 05:39
Does the sample code `throw` a `bool`? If not, it won't really help. I still think you're running into something like the bug I posted a few days ago, and that's why I wanted you to try both a 32-bit and 64-bit compile with the code that's giving you the error. You can most likely get a 32-bit compile by adding `-m32` to your compile options. — Andrew Henle, Feb 15 '16 at 18:58

why purify tool shows an IPR error on the "throw true" statement?

0 Answers0