Solution for Exercise 17-7

ex1707

#include <stdio.h>
#include <ctype.h>

int main()
{
    char input[64];
    char ch;
    int x = 0;

    printf("Type in some text: ");
    fgets(input,63,stdin);

    while(input[x] != '\n')
    {
        if(isalpha(input[x]))
            ch = input[x] & 223;
        else
            ch = input[x];
        putchar(ch);
        x++;
    }
    putchar('\n');

    return(0);
}

Notes

* For my solution, I took refuge in the function isalpha() in Line 15. That test returns TRUE whenever a letter of the alphabet is encountered, FALSE otherwise.

* Remember that you need to include the ctype.h header file when you use the isalpha() function.

Exercise ex1708 →