Character constant in c program

C Programming Language Constant in C Language (Article) Constant in C Language (Program)

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Program:

#include<stdio.h>
#include<conio.h>
int main()
{
const char a = ‘X’;
clrscr();
printf(“Value of a  = %c  , a ”);
getch();
return 0;
}

Output:

Value of a = X

Explanation:

A character constant is a single character, enclosed in single quotation marks.

e.g., ‘A’  ‘B’ ‘1’

Characters are stored internally in computer as coded set of binary digits, which have positive decimal integer equivalents. The value of a character constant is the numeric value of the character in the machine’s character set. This means that the value of a character constants can vary from one machine to the next, depending on the character set being used on the particular machine. For example, on ASCII machine the value of ‘A’ is 65 and on EBCDIC machine it is 193.

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