diplodocus.org Git - nmh/blob - docs/historical/mh-6.8.5/sbr/add.c

   1 /* add.c - concatenate two strings in managed memory */
   2
   3 #include "../h/mh.h"
   4 #include <stdio.h>
   5
   6
   7 char   *add (this, that)
   8 register char  *this,
   9                *that;
  10 {
  11     register char  *cp;
  12
  13     if (!this)
  14         this = "";
  15     if (!that)
  16         that = "";
  17     if ((cp = malloc ((unsigned) (strlen (this) + strlen (that) + 1))) == NULL)
  18         adios (NULLCP, "unable to allocate string storage");
  19
  20     (void) sprintf (cp, "%s%s", that, this);
  21     if (*that)
  22         free (that);
  23     return cp;
  24 }