K&R

K&R

Exercise 1-8. Write a program to count blanks, tabs, and newlines.

#include <stdio.h>

main()
{
    int blank, charac, tab, newline;
   
    blank = 0;
    tab = 0;
    newline = 0;
   
    printf("          | Blanks | Tabs | Newlines | \n");

    while((charac = getchar()) != EOF)
    {
        if(charac == ' ')
            {       
                ++blank;   
            }
        if(charac == '\t')
            {       
                ++tab;       
            }
        if(charac == '\n')
            {       
                ++newline;
                printf("| No. of: | %6d | %4d | %8d | \n", blank, tab, newline);
            }
    }
}

Exercise 1-9. Write a program to copy its input to its output, replacing each string of one or more blanks by a single blank.

#include <stdio.h>

main()
{
    int input_s, space, space_c;
   
    space = ' ';
    space_c = 0;
   
    while((input_s = getchar()) != EOF)
        {   
            if(input_s != space)
                {
                putchar(input_s);
                space_c = 0;
                }
            else if(input_s == space)
                {
                ++space_c;
                if(space_c == 1)
                    {
                    putchar(input_s);
                    }
                else if(space_c > 1)
                    {
                    --space_c;
                    printf("");
                    }
                }
        }
}

Using Cygwin --GCC 3.4.4, compile with following; -ansi -m32 -pedantic.

Comments on how to make it better, what is bad and what is good, please. (1.8 sucks I know.)

>>35
Besides that, isn't the switch/case only used for testing if the program gives the expected values, and isn't used for the final program?

You are confusing it with assert(), which is not present in standard C.

>>36
I think >>17 meant that main() is wrong and int main() is right, so:

>>1
Using Cygwin --GCC 3.4.4, compile with following; -ansi -m32 -pedantic.

Forgot your -Wall