src/kr_exercises/ch1/s1.9/array_test.c

   1 #include <stdio.h>
   2
   3 #define MAXLINE 1000
   4
   5 int mygetline(char line[], int maxline); /* 'my-' to avoid name collision */
   6
   7 int main() {
   8   int len;
   9   char line[MAXLINE];
  10
  11   while( (len=mygetline(line, MAXLINE)) > 0 ) {
  12     line[0]=64; // '@'
  13     printf("%s\n", line);
  14   };
  15
  16   return 0;
  17 };
  18
  19 /* mygetline: read a line into s, \0-term, return length v2 */
  20 int mygetline(char s[], int lim) {
  21   int c, i, k, j;
  22
  23   /* Read chars into s[] until lim reached */
  24   for (i=0; i<lim-1 && (c=getchar())!=EOF && c!='\n'; ++i )
  25     s[i] = c;
  26   j = i; /* Store char count for counting beyond lim */
  27
  28   /* \0 terminate array s[] */
  29   if (c=='\n') {
  30     s[i] = c;
  31     ++i;
  32   };
  33   s[i] = '\0';
  34
  35   /* Count up remaining chars beyond lim until EOF or '\n' reached */
  36   if (j>=lim-1) {
  37     while ( (c=getchar()) != EOF && c != '\n')
  38       ++j;
  39   };
  40   if (c=='\n')
  41     ++j;
  42
  43   /* Return char count (including chars beyond array limit)*/
  44   return j;
  45 };