diplodocus.org Git - nmh/blob - sbr/concat.c

   1
   2 /*
   3  * concat.c -- concatenate a variable number (minimum of 1)
   4  *             of strings in managed memory
   5  *
   6  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   7  * COPYRIGHT file in the root directory of the nmh distribution for
   8  * complete copyright information.
   9  */
  10
  11 #include <h/mh.h>
  12 #include <h/utils.h>
  13
  14
  15 char *
  16 concat (char *s1, ...)
  17 {
  18     char *cp, *dp, *sp;
  19     size_t len;
  20     va_list list;
  21
  22     len = strlen (s1) + 1;
  23     va_start(list, s1);
  24     while ((cp = va_arg(list, char *)))
  25         len += strlen (cp);
  26     va_end(list);
  27
  28     dp = sp = mh_xmalloc(len);
  29
  30     sp = copy(s1, sp);
  31
  32     va_start(list, s1);
  33     while ((cp = va_arg (list, char *)))
  34         sp = copy(cp, sp);
  35     va_end(list);
  36
  37     return dp;
  38 }