Re: Why GCC/ GDB ignore a normal C statement?

["D.Venkatasubramanian, Noida" <dvenkat@noida.hcltech.com>]

Hi,

Did you use some optimization during compilation. If yes, then that
could be the problem. Optimization should be used only for the final
release. This is a common mistake made by new users.

Venky

On Mon, 2003-05-05 at 17:02, Huaxia Zhao wrote:
> Hi:
> 
> As a beginner of linux programming, I am learning to
> recompile and rebuild my previous programs in Linux
> with GCC/GDB.   However, there is something really
> annoying me.  The code is showed as :
> 
> if ( ( d_z - current ) < MIN_ERROR && ( d_z - current
> ) > -MIN_ERROR)
> 		{
> 			d_z += dz_inc; 
> 			mp += mstep_k; 
> 			i_cz += step_k;			
> 			offset+= mstep_k;
> 		}
> some graphical front-ends of GDB like GVD show that
> the statement 
> 
> i_cz +=step_k; 
> 
> is NOT recongnised as a  statement.  The GDB just
> simpily ignores it when stepping to there.   This
> means the varible i_cz,which is declared as a register
> int varible,  has not  updated after executing.  The
> contexts work well and this part of code runs
> perfectlly when compiled with VC in Windows.
> 
> Could someone give me an idea about this problem?  I
> would be very grateful...
> 
> Frank Zhao
> 
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