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

Metric number, how are metric numer change the number of metric

how are metric numer change the number of metric

How to creat a file herachy for stream class, Ask questionhow to creat a fi...

Ask questionhow to creat a file herachy for stream class #Minimum 100 words accepted#

Basic coding syntax errors, I have a program for school and I am not unders...

I have a program for school and I am not understanding why one of the variables gets skipped or the arithmetic operators aren''t having any effect as I have tryed defining it sever

Algorithm, Write a algorithm to explain the processof wakingbup in morning

Write a algorithm to explain the processof wakingbup in morning

Destruction of local object, Need assignment help What's the order that ...

Need assignment help What's the order that local objects are destructed?

Padovan string, c program to count the number of occurances of the string i...

c program to count the number of occurances of the string in padovan''s string

Area under curve, Write a program to find the area under the curve y = f(x)...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Need to fix a code written in c++, Need to Fix a code written in c++,SDL2.0...

Need to Fix a code written in c++,SDL2.00 for high CPU and memory leak There is a 2D simple game written with SDL2.00 using c++. The game isn't complete and the code is a little

Employee salary, wap to read an employee salary and calculate DA,HRA,pf,GRO...

wap to read an employee salary and calculate DA,HRA,pf,GROSS,NET conditions:- BASIC DA HRA PF >10000 7% 9% 10% & >20000 9% 11% 15% &

Explain the working of strcmp and strcat function, Explain the working of s...

Explain the working of strcmp and strcat Function? strcmp() : This function is meant to use to compare two strings. The strcmp() function acknowledge two strings as argument

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