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

Program for read a formal expression from standard input, Your program will...

Your program will read two kinds of data from two files: names and predicates. It will read a formal expression from standard input and check whether that expression is syntactical

Padovan string, padovan string program in java // aakash , suraj , p...

padovan string program in java // aakash , suraj , prem sasi kumar kamaraj college program 1 : package test.padovanstring; public class PadovanString {     publ

Write a program that allows two players to play connect four, You may work ...

You may work in pairs for this assignment. Submit only one project per team; both partners will receive the same grade. Also, you can earn up to 40 points (out of 25) on this assig

Program to find whether a number is odd or even, PROGRAM TO FIND WHETHER A ...

PROGRAM TO FIND WHETHER A NUMBER IS ODD OR EVEN int main() { int number ; printf("Enter a whole number\n"); scanf("%d",&number); if(number % 2 == 0) printf("n

Find area under curve, write a c program to find the area under the curve4...

write a c program to find the area under the curve4 f=(x) between x=a and x=l integrate y=(x) between the limits of a and b Solution: #include float    start_point,

What are the benefits of using friend classes, What are the benefits of usi...

What are the benefits of using friend classes? - Friend classes are useful when a class wants to hide features from users which are required only by another, tightly coupled cl

C program to check even & odd no, C Program to Check  EVEN & ODD NO   ...

C Program to Check  EVEN & ODD NO   main() {           int n, a;           clrscr();           printf("ENTER ANY NUMBER: ");           scanf("%d", &n);

Explain the bit wise operations, Explain the Bit Wise Operations? C lan...

Explain the Bit Wise Operations? C language in particular was created to make it easier to write operating systems. The objective was to have a language that provided excellent

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