exc/k&r/01-a-tutorial-introduction/01-08.c

#include <stdio.h>

void main()
{
    int c;
    long bl, tb, nl;

    bl = tb = nl = 0;

    while ((c = getchar()) != EOF)
    {
        if (c == ' ')
            ++bl;
        if (c == '\t')
            ++tb;
        if (c == '\n')
            ++nl;
    }
    printf("blanks : %ld\ntabs : %ld\nnewlines : %ld\n", bl, tb, nl);
}