RE: How can I free externally allocated buffers ?

> I'm trying to use libXML for XML parsing, but some of the functions
> there allocate memory for me (char* strings) and require me to free
> them. but calling gw_free() on memory not allocated with gw_malloc()
> will cause a panic, and I cannot call free() directly.
> 
> Is there a simple way to solve this problem ?

libxml has its own set of memory wrappers. Use them, I guess.

From xmlmemory.h;

/*
 * The XML memory wrapper support 4 basic overloadable functions
 */
typedef void (*xmlFreeFunc)(void *);
typedef void *(*xmlMallocFunc)(int);
typedef void *(*xmlReallocFunc)(void *, int);
typedef char *(*xmlStrdupFunc)(const char *);