Explain the symbolic constants in c language, C/C++ Programming

Assignment Help:

Explain the Symbolic Constants in c language?

Symbolic constants are the constants of any type that declared by using the #define compiler directive and it is a preprocessor directive. The Preprocessor' is a translation phase that is applied to your source code before the compiler proper gets its hands on it. Usually the preprocessor performs textual substitutions on your source code. Macro is a kind of preprocessor which replaces instances of one piece of text with another.

The preprocessor line shown below defines symbolic constant

#define name text

Defines the macro with the given name having as its value the given replacement text. Subsequent to that (for the rest of the current source file) wherever the preprocessor sees that name it will replace it with the replacement text.

Its general syntax is as shown below

#define ANGLE_MIN 0
#define ANGLE_MAX 360

It would define ANGLE_MIN and ANGLE_MAX to the values 0 and 360 respectively and C distinguishes between uppercase and lowercase letters in variable names and it is customary to use capital letters in defining symbolic constants.


Related Discussions:- Explain the symbolic constants in c language

Functions and stack frame, Each function has its own stack frame between %f...

Each function has its own stack frame between %fp and %sp. Let Caller calls Callee. Then Caller's %sp becomes callee's %fp, and callee's %sp set to be a new value (a smaller one be

Function, give an example of function

give an example of function

Program that controls the lcd display, Objective:  Construct a C program...

Objective:  Construct a C program that controls the LCD display, and is capable of displaying strings.  Add functions to the C program that allows more control over the display.

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

Ans, A palindrome is a string that reads the same from both the ends. Given...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Oop, write a program which has three classes

write a program which has three classes

Define external storage class - computer programming, Define External Stora...

Define External Storage Class - computer programming? When a variable is declared outside a function the storage is permanently assigned to it and its storage class is 'extern'

Computes the amount of postage count even or odd, (a) Write a procedure (co...

(a) Write a procedure (count-even n) that counts the number of even digits in the decimal representation of the number n. For example, (count-even 234) should return 2. (b) Writ

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