kernighan-and-ritchie

I'm working my way through K&R's 2nd edition, and I've been stumped with this seemingly simple example: #include <stdio.h> main(){ double c; for(c = 0; ((getchar() != EOF) && (getchar() != '\n')); ++c) ; printf("%.0f\n",c); } It simply isn't working correctly. I added in the (getchar() != '\n') portion to end the program when I press enter, but that doesn't really help either. Here's some sample output, using the gcc that comes with Mac OSX 10.6 dev tools. pool-000:Desktop user$ ./a.out a 0 pool-000:Desktop user$ ./a.out asdf 2 pool-000:Desktop user$ ./a.out asfasf 3 So something is obviously

I'm on to K&R's Exercise 1-18 Write a program to remove trailing blanks and tabs from each line of input, and to delete entirely blank lines. This is what I've came up with so far #include <stdio.h> #define MAXLINE 1000 int getline(char line[], int maxline); void copy(char to[], char from[]); int main () { int len; char line[MAXLINE]; while (getline(line, MAXLINE) > 0) { printf("%s", line); } return 0; } int getline(char s[], int lim) { int c, i, lastNonBlankIndex; lastNonBlankIndex = 0; for (i=0; i < lim - 1 && (c = getchar()) != EOF && c != '\n'; ++i) { if (c != ' ' && c != '\t') {

I'm working on the K&R book. I've read farther ahead than I've done exercises, mostly for lack of time. I'm catching up, and have done almost all the exercises from chapter 1, which is the tutorial. My issue was exercise 1-18. The exercise is to: Write a program to remove trailing blanks and tabs from line of input, and to delete entirely blank lines My code (below) does that, and works. My problem with it is the trim method I implemented. It feels ... wrong ... somehow. Like if I saw similar code in C# in a code review, I'd probably go nuts. (C# being one of my specialties.) Can anyone offer

I'm studying K&R book. Currently i'm reading function getop() at p.78. I do understand the code but i need clarifications about 2 things. The code of getop() is as follows: int getch(void); void ungetch(int); /* getop: get next character or numeric operand */ int getop(char s[]) { int i, c; while ((s[0] = c = getch()) == ' ' || c == '\t') ; s[1] = '\0'; if (!isdigit(c) && c != '.') return c; /* not a number */ i = 0; if (isdigit(c)) /* collect integer part */ while (isdigit(s[++i] = c = getch())) ; if (c == '.') /* collect fraction part */ while (isdigit(s[++i] = c = getch())) ; s[i] = '\0';