Author: Stan Eisenstat
Subject: SECOND POSTING: Remark on Homework #3 strwrs
Date: Monday, 24 Feb 2020, 07:53:20

In case you missed it:

  Date: 17 Feb 2020 08:32:42 -0500 (Mon)
  Subject: Remark on Homework #3 strwrs
   
  Hwk3/strwrs does not use
   
  * strstr() or strcmp() (except for recognizing the -v
    flag), since they do not work with fences and escapes
    or with substrings.
   
  * strdup() or stndup(), since there is little reason
    to duplicate strings.
   
  * strcat(), since it knows the length of the string to
    which it is appending and uses strcpy() or strncpy()
    instead (it could have used asprintf(), thereby saving
    a few lines).
   
  * realloc(), since it always creates the new string by
    copying and only then frees the old one.
   
  You cannot overemphasize the importance of adding null
  terminators to strings and allocating space for them.
   
Best,

--Stan-