(self)
Returns the chunk backward from this chunk in the list of free chunks. If this chunk is not free, then it
        resides in no such list and this method raises an error.

        :returns: If possible, the backward chunk; otherwise, raises an error
Returns the chunk backward from this chunk in the list of free chunks. If this chunk is not free, then it
        resides in no such list and this method raises an error.
Returns the chunk backward from this chunk in the list of free chunks . If this chunk is not free then it resides in no such list and this method raises an error .
def bck_chunk(self):
        """
        Returns the chunk backward from this chunk in the list of free chunks. If this chunk is not free, then it
        resides in no such list and this method raises an error.

        :returns: If possible, the backward chunk; otherwise, raises an error
        """
        if self.is_free():
            base = self.state.memory.load(self.base + 3 * self._chunk_size_t_size, self._chunk_size_t_size, endness=self.state.arch.memory_endness)
            return PTChunk(base, self.state)
        else:
            raise SimHeapError("Attempted to access the backward chunk of an allocated chunk")
def bck_chunk ( self ) : if self . is_free ( ) : base = self . state . memory . load ( self . base + 3 * self . _chunk_size_t_size , self . _chunk_size_t_size , endness = self . state . arch . memory_endness ) return PTChunk ( base , self . state ) else : raise SimHeapError ( "Attempted to access the backward chunk of an allocated chunk" )