560
Subj : Re: malloc()
To   : borland.public.cpp.borlandcpp
From : Jan Vernimmen
Date : Thu Jun 24 2004 08:57 pm

Hi Bob,

I think I'm going to change the malloc's in the way you suggested using 
GlobalAlloc and GlobalFree.
Of course you are right about the order of allocating and freeing memory, I 
always try the same.
Your scheme translated to my code should like as follows:

	a=malloc()
	if( a )
	{	b=malloc()
		if( b )
		{	
                      if ( characters )
                      {
                         do stuff
                         if ( more characters then strlen(b) )
                         {
			   free(b)
			   b=malloc()   //I must check malloc, -> b=null
                         }
                         copy stuff.str to b
                      }


		}
                 if( b )
                 {
                    free(b)
		   b=NULL
                 }
		free(a)
		a=NULL
	}

Do not forget the main discussion:
I had:
       txtBuf = (char *)malloc( strlen( szInput ) + 1 );   // with problems 
now and then

I made
       txtBuf = (char *)malloc( strlen( szInput ) + 2 );   // no problems in 
the last 6 month

In the last case malloc() seems to work fine!
To my opinion malloc is working but for unknow reasons in the first 
construction it takes the wrong size.

Greetings,
Jan.

.

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