/**
* Call this for uninitialized strings. Global variables are
* automatically cleared, so they don't need initialization.
* The string will use the memory zone.
*/
ddstring_t *Str_Init(ddstring_t *str)
{
DENG_ASSERT(str);
if(!str) return 0;
if(!Z_IsInited())
{
// The memory zone is not available at the moment.
return Str_InitStd(str);
}
memset(str, 0, sizeof(*str));
// Init the memory management.
str->memFree = Z_Free;
str->memAlloc = zoneAlloc;
str->memCalloc = zoneCalloc;
return str;
}
dd_bool Z_Contains(void *ptr)
{
memvolume_t *volume;
memblock_t *block = Z_GetBlock(ptr);
DENG_ASSERT(Z_IsInited());
if (block->id != LIBDENG_ZONEID)
{
// Could be in the zone, but does not look like an allocated block.
return false;
}
// Check which volume is it.
for (volume = volumeRoot; volume; volume = volume->next)
{
if ((char *)ptr > (char *)volume->zone && (char *)ptr < (char *)volume->zone + volume->size)
{
// There it is.
return true;
}
}
return false;
}
