Explain the #undef directive, C/C++ Programming

Assignment Help:

The #undef Directive

This directive undefines a previously explained macro. For, example the following will give an error since PI is undefined.

                #define PI 3.14285

                void main()

                 {

                                cout<< PI;                                           // no error here

                  # undef PI;

 

cout << PI;                          // error after undef.

                 }

 


Related Discussions:- Explain the #undef directive

Binary search tree and graph, Important Note: No course works, which have b...

Important Note: No course works, which have been submitted via hard copies or emails, will be accepted a short essay below edited in a document (word, other) files with

Luminous Jewels, Jewels can only be removed for polishing from either end o...

Jewels can only be removed for polishing from either end of the necklace

Psudo code for interrupt handler , The rPeANUt simulator provides buffering...

The rPeANUt simulator provides buffering of the characters that are typed into the terminal. However, this would generally not be the case so if the program did not consume a chara

Record of student and calculating marks using ctotal, reocord of a student ...

reocord of a student and a function ctotal to calculate the marks of any three subject by using ctotal() function

Array, Write a program to count the prime number in array

Write a program to count the prime number in array

Assigment, C++ Programming Assignment ATM Machine Phase 1 In this assign...

C++ Programming Assignment ATM Machine Phase 1 In this assignment you will create a program that allows a user to do the following: 1) Create a bank account by supplying a use

#padovan string in c , #padovan string in java   program in java /...

#padovan string in java   program in java // aakash , suraj , prem sasi kumar kamaraj college program 1 : package test.padovanstring; public class PadovanStrin

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