1  /* Test matherr (compat symbols, binary modifies library's _LIB_VERSION).
       2     Copyright (C) 1997-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <math.h>
      20  #include <stdio.h>
      21  #include <stdlib.h>
      22  
      23  #include <math-svid-compat.h>
      24  #include <shlib-compat.h>
      25  
      26  #undef matherr
      27  #undef _LIB_VERSION
      28  compat_symbol_reference (libm, matherr, matherr, GLIBC_2_0);
      29  compat_symbol_reference (libm, _LIB_VERSION, _LIB_VERSION, GLIBC_2_0);
      30  
      31  static int fail = 1;
      32  
      33  int
      34  matherr (struct exception *s)
      35  {
      36    printf ("matherr is working\n");
      37    fail = 0;
      38    return 1;
      39  }
      40  
      41  static int
      42  do_test (void)
      43  {
      44    _LIB_VERSION = _SVID_;
      45    acos (2.0);
      46    return fail;
      47  }
      48  
      49  #include <support/test-driver.c>