What is the easiest way to count the newlines in an ASCII file?

Question

Which is the fastest way to get the lines of an ASCII file?

Answer 1

Maybe I'm missing something, but why not simply:

#include 
int main(void) {
  int n = 0;
  int c;
  while ((c = getchar()) != EOF) {
    if (c == '\n')
      ++n;
  }
  printf("%d\n", n);
}

if you want to count partial lines (i.e. [^\n]EOF):

#include 
int main(void) {
  int n = 0;
  int pc = EOF;
  int c;
  while ((c = getchar()) != EOF) {
    if (c == '\n')
      ++n;
    pc = c;
  }
  if (pc != EOF && pc != '\n')
    ++n;
  printf("%d\n", n);
}