1  /* Test requirements on FP_ILOGB* constants.
       2     Copyright (C) 2016-2023 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 <limits.h>
      20  #include <math.h>
      21  
      22  #if FP_ILOGB0 >= 0
      23  # error "FP_ILOGB0 is positive"
      24  #endif
      25  
      26  #if FP_ILOGB0 != INT_MIN && FP_ILOGB0 != -INT_MAX
      27  # error "FP_ILOGB0 must be INT_MIN or -INT_MAX"
      28  #endif
      29  
      30  #if FP_ILOGBNAN >= 0 && FP_ILOGBNAN != INT_MAX
      31  # error "FP_ILOGBNAN must be INT_MIN or INT_MAX"
      32  #endif
      33  
      34  #if FP_ILOGBNAN < 0 && FP_ILOGBNAN != INT_MIN
      35  # error "FP_ILOGBNAN must be INT_MIN or INT_MAX"
      36  #endif
      37  
      38  /* This is a compilation test.  */
      39  #define TEST_FUNCTION 0
      40  #include "../test-skeleton.c"