Given a character, we have to check whether the given character is alphanumeric or not without using the library function.
Program:
The source code to check a given character is alphanumeric or not without using the library function is given below. The given program is compiled and executed using GCC compile on UBUNTU 18.04 OS successfully.
// C program to check a given character is
// alphanumeric or not without using library function
#include <stdio.h>
int isAlphaNumeric(char ch)
{
if ((ch >= '0' & ch <= '9') || (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))
return 1;
return 0;
}
int main()
{
char ch = 0;
printf("Enter character: ");
scanf("%c", &ch);
if (isAlphaNumeric(ch))
printf("Given character is an alphanumeric character\n");
else
printf("Given character is not an alphanumeric character\n");
return 0;
}
Output:
RUN 1:
Enter character: G
Given character is an alphanumeric character
RUN 2:
Enter character: 8
Given character is an alphanumeric character
RUN 3:
Enter character: +
Given character is not an alphanumeric character
Explanation:
In the above program, we created two functions isAlphaNumeric() and main(). The isAplhaNumeric() function is used to check the given character is alphanumeric or not.
In the main() function, we read a character from the user and check given character is alphanumeric or not by calling the isAlphaNumeric() function and print the appropriate message on the console screen.
Given a character, we have to check whether the given character is alphanumeric or not without using the library function.
Program:
The source code to check a given character is alphanumeric or not without using the library function is given below. The given program is compiled and executed using GCC compile on UBUNTU 18.04 OS successfully.
Output:
Explanation:
In the above program, we created two functions isAlphaNumeric() and main(). The isAplhaNumeric() function is used to check the given character is alphanumeric or not.
In the main() function, we read a character from the user and check given character is alphanumeric or not by calling the isAlphaNumeric() function and print the appropriate message on the console screen.
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