Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Defines a macro
Defines a macro with the given name, having as its value the given replacement text. After that (for the rest of the current source file), wherever the preprocessor sees that name, it will replace it with the replacement text. The name follows the same rules as ordinary identifiers (it can contain only letters, digits, and underscores, and may not begin with a digit). Since macros behave quite differently from normal variables (or functions), it is customary to give them names which are all capital letters (or at least which begin with a capital letter). The replacement text can be absolutely anything--it's not restricted to numbers, or simple strings, or anything.
The most common use for macros is to propagate various constants around and to make them more self-documenting. We've been saying things like
char line[100];
...
getline(line, 100);
but this is neither readable nor reliable; it's not necessarily obvious what all those 100's scattered around the program are, and if we ever decide that 100 is too small for the size of the array to hold lines, we'll have to remember to change the number in two (or more) places.
A much better solution is to use a macro:
#define MAXLINE 100 char line[MAXLINE];
getline(line, MAXLINE);
1. The missionaries and cannibals problem. Three missionaries and three cannibals are on the left river bank, with a boat that can hold one or two people. If on either side of the
Hill Climbing - Artificial Intelligence: As we've seen, in some problems, finding the search path from primary to goal state is the point of the exercise. In other problems, t
Data Transfer Two most fundamental data transfer instructions in 8086 microprocessor are XCHG and MOV. Let's give illustrations of the use of these instructions. Program 1:
define conceptual schema
Q. Describe about full adder? Let's take full adder. For this other variable carry from previous bit addition is added let'us call it 'p'. Truth table and K-Map for this is dis
Q. What is the dissimilarity between a lens and a mirror? Answer:- A mirror is a reflective surface that light passes through the glass and hits the silver backing reflect
advantage of multikey organisation
import java.util.Scanner; class AddNumbers { public static void main(String args[]) { int x, y, z; System.out.println("Enter two integers to calculate their sum
What is the need of interrupt controller? The interrupt controller is employed to expand the interrupt inputs. It can handle the interrupt requests from several devices and pe
how can we bimpliment half substractor using nand gate
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd