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#include <stdio.h>
#include <ctype.h> // toupper(), tolower(), isupper(), islower()
//This function will return the ASCII value of the character
int get_ascii(char c)
{
return (int)c; //Need to cast the char as an int to get the ASCII value
}
int main()
{
char ch; //To hold the character
//Loop till ch equals '#'
do
{
printf("Enter a character: ");
scanf(" %c", &ch); //Get the character from the user, notice the space before %c
//The space tells to ignore the whitespace characters like '\n'
int ascii_value = get_ascii(ch); //Get the ascii value of the character
printf("\nASCII value of %c: %d\n\n", ch, ascii_value); //Display the ASCII value
if(islower(ascii_value)) //If the character is a lowercase character (a..z)
{
char upper_ch = (char)toupper(ascii_value); //Get the uppercase character
int upper_ascii = get_ascii(upper_ch); //Get the ASCII value of the uppercase character
//Display the uppercase character and its ASCII value
printf("Uppercase version of %c is %c.\n", ch, upper_ch);
printf("ASCII value of %c: %d\n\n", upper_ch, upper_ascii);
}
else if(isupper(ascii_value)) //If the character is an uppercase character (A..Z)
{
char lower_ch = (char)tolower(ascii_value); //Get the lowercase character
int lower_ascii = get_ascii(lower_ch); //Get the ASCII value of the lowercase character
//Display the lowercase character and its ASCII value
printf("Lowercase version of %c is %c.\n", ch, lower_ch);
printf("ASCII value of %c: %d\n\n", lower_ch, lower_ascii);
}
} while(!(ch == '#'));
printf("Have a nice day peep! :D\n");
return 0;
}
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