String::FindFirst()

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/03/2007 at 13:20, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   9.603
Platform:   Windows ;
Language(s) :     C++ ;

---------
Hi Guys,
I am unable to get the FindFirst member function of the String class to operate correctly. The following code should work, but doesn't:

    
    
    
    
    LONG *charPos = NULL;  
    String name("Cube Whatever");
    
    
    
    
    if(name.FindFirst(" ", charPos, 0))  
    {  
    if(!charPos)  
    {  
    GePrint("Exiting");  
     return TRUE;  
    }  
      
    name[*charPos] = '_';  
    }

The charPos pointer will ALWAYS return NULL! The really confusing thing is that the console will always print "Exiting" meaning that the FindFirst() is finding the " " in the name string. So the question is: Why is the LONG *Pos parameter not returning a correct pointer? As always any help on this is always much appreciated.
Josh

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/03/2007 at 14:28, xxxxxxxx wrote:

You have only created a NULL pointer. You have to allocate a LONG variable and pass the pointer to FindFirst. This should work:

  
LONG charPos = 0; //create a variable on the stack  
String name("Cube Whatever");  
  
if(name.FindFirst(" ", &charPos;, 0)) //pass the address (pointer) of charPos  
{  
name[charPos] = '_';  
}

Alternatively you can also allocate a LONG on the heap with gNew, just make sure to de-allocate it with gDelete. Note always use Cinemas own allocation methods to ensure maximum platform compatibility.

cheers,
Matthias

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/03/2007 at 14:44, xxxxxxxx wrote:

Thanks for the quick reply. I assumed that the pointer would be filled by the FindFirst() which is why I initially set it to NULL. But this makes sense, thanks once again.
Josh