What is ASCII ?
The full form of ASCII is American Standard Code for Information Interchange. It is a character encoding scheme used for electronic communications. Each character or special character is represented by some ASCII code, and each ASCII code occupies 7 bits in memory.
In the C programming language, the character variable contains the ascii value of the character variable, not the character value itself. ASCII values represent variable characters as numbers, and each variable character is assigned a number between 0 and 127. For example, the ascii value of ‘A’ is 65.
In the above example, we have assigned ‘A’ to a character variable with ascii value 65, so 65 and not ‘A’ will be stored in the character variable.
Syntax
To get the ASCII value of a character in C, you can use an int file to store the ASCII value and the character itself must be enclosed in an expression. For example:
char ch = ‘A’; // Character variable
int ascii_value; // Variable to store ASCII value
ascii_value = ch; // Assigning ASCII value to variable
- To print the ASCII value, you can use the printf() function with the %d format specifier:
printf(“ASCII value of %c is %d\n”, ch, ascii_value);
Example
Here is a complete example showing how to get and print the ASCII value of a character.
#include <stdio.h>
int main() {
char ch = ‘A’; // Character variable
int ascii_value; // Variable to store ASCII value
ascii_value = ch; // Assigning ASCII value to variable
printf(“ASCII value of %c is %d\n”, ch, ascii_value);
return 0;
}
Output
ASCII value of A is 65