tests/test-szprintf-gnu.h

   1 /* Test of POSIX and GNU compatible vszprintf() and szprintf() functions.
   2    Copyright (C) 2007-2025 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 /* This test exercises only a few POSIX compliance problems that are still
  20    visible on platforms relevant in 2024.  For a much more complete test suite,
  21    see test-sprintf-posix.h.  */
  22
  23 static void
  24 test_function (ptrdiff_t (*my_szprintf) (char *, const char *, ...))
  25 {
  26   char result[5000];
  27
  28   /* Test the support of the 'B' conversion specifier for binary output of
  29      integers.  */
  30
  31   { /* This test would fail on all platforms other than glibc ≥ 2.35.  */
  32     ptrdiff_t retval =
  33       my_szprintf (result, "%#B %d", 12345, 33, 44, 55);
  34     ASSERT (strcmp (result, "0B11000000111001 33") == 0);
  35     ASSERT (retval == strlen (result));
  36   }
  37 }