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);
What is an encoder? Draw the logic circuit of Decimal to BCD encoder and explain its working. Ans. Encoder: It is a combinational logic circuit which converts alphanumeric ch
Explain the term - ancestors The ancestors of modern age computer were mechanical and electro-mechanical instruments. This ancestry can be traced as back and seventeenth centur
Q. Explain working of Digital camera? A Digital camera is a camera which captures and stores still images and video (Digital Video Cameras) as digital data in place of on photo
Q. Which way do twin twist props on a boat rotate when propelling the boat forward? Answer:- In opposite direction however they are designed to propel the boat forward eve
What is an Interface? An interface is not a class. It is an entity that is explained by the word Interface. An interface has no implementation; it only has the signature or in
What are the "field" and "chain" Statements? The FIELD and CHAIN flow logic statements let you Program your own checks. FIELD and CHAIN tell the system which fields you are ch
OLAP can process difficult queries and give the output in less than 0.1 seconds, for it to achieve like performance OLAP uses aggregations. Aggregations are built by aggregating an
Advantages and Disadvantages of Public-key cryptography Advantages (i) Enhanced security and convenience (ii) Electronic records may be authenticated by affixing
Move the mouse pointer over the object you wish to drag, and then hold down the left mouse button. Whereas holding the mouse button, move the mouse pointer (and the object) to the
Explain Concurrent Sharing Here a number of programs that may share a file simultaneously. While this is the case, it is necessary to prevent mutual interference among them. Th
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