When using the "singleton_pool" to allocate the new space, I found there is a limitation in this pool. If I want to allocate 16KB memory space,I can do it by call 65503 times( about 1GB space has been used ). Then, I established another singleton_pool object to allocate 1KB space ,this time I succeed 524255 times( about 500MB memory space). I want to know whether there is a limitation in that? thx. ps : the sample codes: typedef boost::singleton_pool<PieceMemoryPoolTag, UDP_BIG_BUFFER_SIZE+1> BigPool; void* BigMemPool::malloc(void) { void *pbuf = BigPool::malloc(); assert(pbuf); if (pbuf != NULL) { memset(pbuf, 0, UDP_BIG_BUFFER_SIZE+1); bigmalloctimes++; char str[128]; sprintf_s(str, "BigMemPool::malloc %lu", bigmalloctimes); } return pbuf; }