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

How to use http headers inside php, How to use HTTP Headers inside PHP? Wri...

How to use HTTP Headers inside PHP? Write the statement through which it can be added? HTTP headers can be used in PHP by redirection that is written as: Headers can be

Create a stack using arrays, Problem : (a) Stacks can be implemented u...

Problem : (a) Stacks can be implemented using arrays. Write down the following C or C++ function to (i) create a stack (ii) add an element to a stack (push). (b) Expl

.testvita, answer for tcs is working question

answer for tcs is working question

Make a connection to fifa ultimate team 14 using c++ or c#, I need to creat...

I need to create a connection to FIFA Ultimate Team 14, I want to utilize C++ specifically for the reason that that is the language I have the most experience in. There are a co

Dll, i need amibroker afl to dll plugin

i need amibroker afl to dll plugin

Luminous Jewels - The Polishing Game, Byteland county is very famous for lu...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Class booking system, I want source code for class booking system by using ...

I want source code for class booking system by using C++ Programming...Urgent

Using substitution model write corresponding constructor, (a) Pairs may be ...

(a) Pairs may be represented using a lambda. Using only lambdas, create a procedure (triple x y z) that constructs a triplet. You may NOT use car, cons or cdr in the triplet proced

Add the two complex no.s given by user - c++ program, THIS PROGRAM IS TO AD...

THIS PROGRAM IS TO ADD THE TWO COMPLEX NO.S GIVEN BY THE USER */ #include #include #include struct complex { int real; int imag; }; void main() { clrs

Calculate the area and circumference of a circle , Write a program which in...

Write a program which incorporates a function named compute and which is used to calculate the area and circumference of a circle. Use the main function for inputs and outputs.

Write Your Message!

Name

Email id

Message

Verfication Code

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!

Submit Assignment

User Account

All Pages