size_t nfree; /* Free fragments in a fragmented block. */
short frag_size[MAX_FRAGMENT_PER_BLOCK];
//void *bt[MAX_FRAGMENT_PER_BLOCK][XBT_BACKTRACE_SIZE]; /* Where it was malloced (or realloced lastly) */
size_t nfree; /* Free fragments in a fragmented block. */
short frag_size[MAX_FRAGMENT_PER_BLOCK];
//void *bt[MAX_FRAGMENT_PER_BLOCK][XBT_BACKTRACE_SIZE]; /* Where it was malloced (or realloced lastly) */