c++ - stuck with creating node and linked-list of specific requirement -

i have requirement create linked list of m size , each node contain b size. have attached image how link list , load should , elements in it.

structure required of linked list:

can 1 can tell me how should format node meet requirement.

i not understand post 100%, based on understand , guess, got following things.

1. element head 8bit, means linked list should within 256 elements. 2. element valuelen 4bit, means value should less 16 bit

so defined structure

struct node {     unsigned int nextptr:8;     unsigned int key:4;     unsigned int valuelen:4;     unsigned int value:16; };

which have 4byte (32bit) , whole linked list should be

typedef node linkedlist[256];

total 1k bytes.

Ben