source/texk/kpathsea/concat.c

   1 /* concat.c: dynamic string concatenation.
   2
   3    Copyright 1992, 1993, 2008 Karl Berry.
   4    Copyright 2002, 2005 Olaf Weber.
   5
   6    This library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    This library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public License
  17    along with this library; if not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #include <kpathsea/config.h>
  20
  21
  22 /* Return the concatenation of S1 and S2.  See `concatn.c' for a
  23    `concatn', which takes a variable number of arguments.  */
  24
  25 string
  26 concat (const_string s1,  const_string s2)
  27 {
  28   unsigned s1len = strlen(s1);
  29   unsigned s2len = strlen(s2);
  30   string answer = (string) xmalloc (s1len + s2len + 1);
  31   strcpy (answer, s1);
  32   strcat (answer + s1len, s2);
  33
  34   return answer;
  35 }