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

Inside and outside type casting, depth description of the inside and outsid...

depth description of the inside and outside typecasting

Explain variables, Variables Information stored in a variable can alter...

Variables Information stored in a variable can alter in the course of the program. The type used in the definition explains the kind of information the symbol can store. Variab

Compiler Design - Limit the Method Instructions, please do send me the codi...

please do send me the coding of this program

Spaning tree , what is the function of spanning tree in graph algorithm?

what is the function of spanning tree in graph algorithm?

Board coloring, source code in c ?

source code in c ?

Required, C++ Help

C++ Help

What is structure, What is Structure? An Array is a data structure who...

What is Structure? An Array is a data structure whose elements are all of the similar data type. The structure is a data structure whose individual elements are able to differ

Basics, conceptual difference between big o,big thete and big omega

conceptual difference between big o,big thete and big omega

Minimum shelf, find the minimum shelf

find the minimum shelf

Area under curve., find the c program to find area under the curvey=f(x) ...

find the c program to find area under the curvey=f(x) #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area;

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