1  /* Test matherr (compat symbols, binary defines own _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  #if TEST_COMPAT (libm, GLIBC_2_0, GLIBC_2_27)
      27  
      28  # undef matherr
      29  # undef _LIB_VERSION
      30  compat_symbol_reference (libm, matherr, matherr, GLIBC_2_0);
      31  compat_symbol_reference (libm, _LIB_VERSION, _LIB_VERSION, GLIBC_2_0);
      32  
      33  _LIB_VERSION_TYPE _LIB_VERSION = _SVID_;
      34  
      35  static int fail = 1;
      36  
      37  int
      38  matherr (struct exception *s)
      39  {
      40    printf ("matherr is working\n");
      41    fail = 0;
      42    return 1;
      43  }
      44  
      45  static int
      46  do_test (void)
      47  {
      48    acos (2.0);
      49    return fail;
      50  }
      51  #else
      52  static int
      53  do_test (void)
      54  {
      55    return 77;
      56  }
      57  #endif
      58  
      59  #include <support/test-driver.c>