Illustrate bit fields with structures, C/C++ Programming

Assignment Help:

C language lets us do this in a structure definition by putting: bit length after the variable that is.

struct packed_struct {
unsigned int f1:1;
unsigned int f2:1;
unsigned int f3:1;
unsigned int f4:1;
unsigned int type:4;
unsigned int funny_int:9;
} pack;

Here the packed_struct contains 6 members: Four 1 bit flags f1..f3, a 4 bit type and a 9 bit funny_int.

C language automatically packs the above bit fields as compactly as possible provided that the maximum length of the field is equal or less than to the integer word length of the computer. If this isn't the case then some compilers may permit memory overlap for the fields whilst other would store the next field in the next word.

Access members as usual via:

pack.type = 7; 


Related Discussions:- Illustrate bit fields with structures

Define the return statement in computer programming, Define The Return Stat...

Define The Return Statement in Computer Programming? The return statement is used for two purposes once the return statement is executed the program control will be immediately

Write short note on classes in c++, Introduction to Classes Object-orie...

Introduction to Classes Object-oriented programming (OOP) is a conceptual approach to design programs. It can be executed in many languages, whether they directly support OOP c

What is the main advantage to using a data file, Problem: (a) What is ...

Problem: (a) What is the main advantage to using a data file? (b) What is meant by opening a data file? How is this accomplished? Illustrate your answer clearly with a sui

Stack and queues, Using Figure 10.2 as a model, illustrate the result of ea...

Using Figure 10.2 as a model, illustrate the result of each operation in the sequence ENQUEUE.Q; 4/, ENQUEUE.Q; 1/, ENQUEUE.Q; 3/, DEQUEUE.Q/, ENQUEUE.Q; 8/, and DEQUEUE.Q/ on an i

#title. c program on pebble merchant, #questThere is a pebble merchant. He ...

#questThere is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doin

Simple generic version of method isequalto, Write a simple generic version ...

Write a simple generic version of method isEqualTo that compares its two arguments with the equals method and returns true if they are equal and false otherwise. Use this generic m

Program is to find the area of room, Program is to find the area of room: ...

Program is to find the area of room: Program is to find the area of room with default values using classes & object class room   {   private:     int len;     i

Explain the bit fields portable or not, Explain the  bit fields portable o...

Explain the  bit fields portable or not? - No, Bit fields aren't portable. - As Bit fields can't span machine words and number of bits in a machine word is different on diff

What is virtual class and friend class, Friend classes are used when two or...

Friend classes are used when two or more classes are designed to work together and require access to each other's execution in ways that the rest of the world shouldn't be permitte

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd