tests/test-vaszprintf-gnu.h

   1 /* Test of POSIX and GNU compatible [v]aszprintf(), c_[v]aszprintf() functions.
   2    Copyright (C) 2007-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2024.  */
  18
  19 static void
  20 test_function (ptrdiff_t (*my_aszprintf) (char **, const char *, ...))
  21 {
  22   /* Test the support of the 'B' conversion specifier for binary output of
  23      integers.  */
  24
  25   { /* This test would fail on all platforms other than glibc ≥ 2.35.  */
  26     char *result;
  27     ptrdiff_t retval =
  28       my_aszprintf (&result, "%#B %d", 12345, 33, 44, 55);
  29     ASSERT (result != NULL);
  30     ASSERT (strcmp (result, "0B11000000111001 33") == 0);
  31     ASSERT (retval == strlen (result));
  32     free (result);
  33   }
  34 }