math/test-matherr.c

   1 /* Test matherr (compat symbols, binary modifies library's _LIB_VERSION).
   2    Copyright (C) 1997-2020 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 static int fail = 1;
  34
  35 int
  36 matherr (struct exception *s)
  37 {
  38   printf ("matherr is working\n");
  39   fail = 0;
  40   return 1;
  41 }
  42
  43 static int
  44 do_test (void)
  45 {
  46   _LIB_VERSION = _SVID_;
  47   acos (2.0);
  48   return fail;
  49 }
  50 #else
  51 static int
  52 do_test (void)
  53 {
  54   return 77;
  55 }
  56 #endif
  57
  58 #include <support/test-driver.c>