hey, the following situation...
i have a bitmap pointer like this

Code:

---

BMAP* b_dot = NULL;
char* b_dot_file = "dot.tga";

//then i fill it like this

BMAP* bmapCheck(BMAP* source, char* file)
{
	if (source == NULL) {
		source = bmap_create(file);
	}
	
	return(source);
}

---

it gets filled the first time, but also the second and so on... so i produce some sort of filling the memory forever.

so source is always == NULL but shouldn't it be filled the second time i run this function?
right now its not and a new bitmap is created in memory everytime i rerun the function.
it gets called like this from a particle function f.i.

p.bmap=bmapCheck(b_dot, b_dot_file);


thanks for any help.

Versuch mal

if( *source == 0 )

und

*source = bmap_create(file);

if i use

if( *source == 0 )

i get: machine code generator:can not translate EQ:STRUCT@8:LONG:LONG.

and with

*source = bmap_create(file);

i get: Can not convert 'POINTER' to 'struct BMAP'

):

Yes, ofcourse. *source is a BMAP, and you can't compare BMAP to int. And the second attempt: again *source is a BMAP, so you can't assign it a BMAP*.

The problem is you never assign anything to b_dot. Either make source a BMAP** and use *source in the function and call it with &b_dot, or make it b_dot=bmapCheck(b_dot, b_dot_file);. I would opt for the first option since it will guarantee that the pointer is not empty after you call that function (so you don't have to remember to assign it).

Remember that in your code, source is only a temporary copy of the contents of b_dot (which is a memory address). source is deallocated (not the thing it points to! only the 4 bytes that store the memory address) when the function ends, so assigning to it makes no sense.

thanks! but as for assigning b_dot i did already use the function exactely as you said:

p.bmap=bmapCheck(b_dot, b_dot_file);

but this does not work. using the BMAP** and *source idea did only lead to engine crashes and doesnt really work. (i did call it with b_dot=bmapCheck(&b_dot, b_dot_file); in this case)

thank you very much Excessus now the problem seems to have solved and i think i understand it now. thanks very much again it works perfect.