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

Oop, write a program which has three classes

write a program which has three classes

Overloading binary operators using friend function, Overloading Binary Oper...

Overloading Binary Operators Using Friend Function class SI {float i,p,n,r,a; public: SI(){}; SI(int gp,int gn, int gr); void putdata(void); friend SI operato

Padovan string, padovan string problem program 1 : package test.padovan...

padovan string problem program 1 : package test.padovanstring; public class PadovanString {     public int stringOccurrences(int n, String str){        if(n >= 40)

Decode the code, Smugglers are becoming very smart day by day. Now they hav...

Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send

We want network-social app, We are seeking a talented developer/team with g...

We are seeking a talented developer/team with great experience in programming apps for both Android and iOS. Our project needs great skills and experience in making good functional

Rules of operator overloading, Rules of Operator Overloading It is ...

Rules of Operator Overloading It is a function defined to an operator with new term or meaning. It cannot produce new operator. It cannot modified the meaning of th

Explain constructors, Constructors By definition, a constructor functio...

Constructors By definition, a constructor function of some class is a member function that automatically gets implemented whenever an instance of the class to which the constru

Stack over flow for sun sparc, Please use C or C++ to write your programs. ...

Please use C or C++ to write your programs. Our homework will focus on SUN sparc machines because to exploit x86 stack-overflow is too easy. This is not just a programming assignme

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