kc3-lang/gnulib/tests/test-isnanf.h

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• Hash : cf00d491
  Author :
  Date : 2011-09-11T17:29:11
  

  Support for MSVC compiler: Avoid division by a literal 0.
  
  * lib/math.in.h (NAN): Define through a function call also on MSVC.
  * m4/frexp.m4 (gl_FUNC_FREXP_WORKS): Divide by 'zero' instead of 0.0.
  * m4/printf.m4 (gl_PRINTF_INFINITE, gl_PRINTF_DIRECTIVE_A,
  gl_PRINTF_DIRECTIVE_F, gl_PRINTF_FLAG_ZERO): Likewise.
  (gl_PRINTF_INFINITE_LONG_DOUBLE): Divide by 'zeroL' instead of 0.0L.
  * tests/infinity.h: New file.
  * tests/nan.h (NaNf, NaNd, NaNl): Define through a function call also
  on MSVC.
  * tests/test-ceilf1.c: Include infinity.h.
  (main): Use Infinityf.
  * tests/test-ceil1.c: Include infinity.h.
  (main): Use Infinityd.
  * tests/test-ceill.c: Include infinity.h.
  (main): Use Infinityl.
  * tests/test-dprintf-posix.c: Include infinity.h.
  (test_function): Use Infinityd.
  * tests/test-floorf1.c: Include infinity.h.
  (main): Use Infinityf.
  * tests/test-floor1.c: Include infinity.h.
  (main): Use Infinityd.
  * tests/test-floorl.c: Include infinity.h.
  (main): Use Infinityl.
  * tests/test-fprintf-posix.c: Include infinity.h.
  (test_function): Use Infinityd.
  * tests/test-frexp.c: Include infinity.h.
  (main): Use Infinityd.
  * tests/test-frexpl.c: Include infinity.h.
  (main): Use Infinityl.
  * tests/test-isfinite.c: Include infinity.h.
  (test_isfinitef): Use Infinityf.
  (test_isfinited): Use Infinityd.
  (test_isfinitel): Use Infinityl.
  * tests/test-isinf.c: Include infinity.h.
  (test_isinff): Use Infinityf.
  (test_isinfd): Use Infinityd.
  (test_isinfl): Use Infinityl.
  * tests/test-isnan.c: Include infinity.h.
  (test_float): Use Infinityf.
  (test_double): Use Infinityd.
  (test_long_double): Use Infinityl.
  * tests/test-isnanf.h: Include infinity.h.
  (main): Use Infinityf.
  * tests/test-isnand.h: Include infinity.h.
  (main): Use Infinityd.
  * tests/test-isnanl.h: Include infinity.h.
  (main): Use Infinityl.
  * tests/test-ldexpl.c: Include infinity.h.
  (main): Use Infinityl.
  * tests/test-printf-posix.h: Include infinity.h.
  (test_function): Use Infinityd.
  * tests/test-roundf1.c: Include infinity.h.
  (main): Use Infinityf.
  * tests/test-round1.c: Include infinity.h.
  (main): Use Infinityd.
  * tests/test-roundl.c: Include infinity.h.
  (main): Use Infinityl.
  * tests/test-signbit.c: Include infinity.h.
  (test_signbitf): Use Infinityf.
  (test_signbitd): Use Infinityd.
  (test_signbitl): Use Infinityl.
  * tests/test-snprintf-posix.h: Include infinity.h.
  (test_function): Use Infinityd, Infinityl.
  * tests/test-sprintf-posix.h: Include infinity.h.
  (test_function): Use Infinityd, Infinityl.
  * tests/test-truncf1.c: Include infinity.h.
  (main): Use Infinityf.
  * tests/test-trunc1.c: Include infinity.h.
  (main): Use Infinityd.
  * tests/test-truncl.c: Include infinity.h.
  (main): Use Infinityl.
  * tests/test-vasnprintf-posix.c: Include infinity.h.
  (test_function): Use Infinityd, Infinityl.
  * tests/test-vasprintf-posix.c: Include infinity.h.
  (test_function): Use Infinityd, Infinityl.
  * modules/ceilf-tests (Files): Add tests/infinity.h.
  * modules/ceil-tests (Files): Likewise.
  * modules/ceill-tests (Files): Likewise.
  * modules/dprintf-posix-tests (Files): Likewise.
  * modules/floorf-tests (Files): Likewise.
  * modules/floor-tests (Files): Likewise.
  * modules/floorl-tests (Files): Likewise.
  * modules/fprintf-posix-tests (Files): Likewise.
  * modules/frexp-tests (Files): Likewise.
  * modules/frexp-nolibm-tests (Files): Likewise.
  * modules/frexpl-tests (Files): Likewise.
  * modules/frexpl-nolibm-tests (Files): Likewise.
  * modules/isfinite-tests (Files): Likewise.
  * modules/isinf-tests (Files): Likewise.
  * modules/isnan-tests (Files): Likewise.
  * modules/isnanf-tests (Files): Likewise.
  * modules/isnanf-nolibm-tests (Files): Likewise.
  * modules/isnand-tests (Files): Likewise.
  * modules/isnand-nolibm-tests (Files): Likewise.
  * modules/isnanl-tests (Files): Likewise.
  * modules/isnanl-nolibm-tests (Files): Likewise.
  * modules/ldexpl-tests (Files): Likewise.
  * modules/printf-posix-tests (Files): Likewise.
  * modules/roundf-tests (Files): Likewise.
  * modules/round-tests (Files): Likewise.
  * modules/roundl-tests (Files): Likewise.
  * modules/signbit-tests (Files): Likewise.
  * modules/snprintf-posix-tests (Files): Likewise.
  * modules/sprintf-posix-tests (Files): Likewise.
  * modules/truncf-tests (Files): Likewise.
  * modules/trunc-tests (Files): Likewise.
  * modules/truncl-tests (Files): Likewise.
  * modules/vasnprintf-posix-tests (Files): Likewise.
  * modules/vasprintf-posix-tests (Files): Likewise.
  * modules/vdprintf-posix-tests (Files): Likewise.
  * modules/vfprintf-posix-tests (Files): Likewise.
  * modules/vprintf-posix-tests (Files): Likewise.
  * modules/vsnprintf-posix-tests (Files): Likewise.
  * modules/vsprintf-posix-tests (Files): Likewise.
  * modules/xprintf-posix-tests (Files): Likewise.
  

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• tests/test-isnanf.h

• /* Test of isnanf() substitute.
     Copyright (C) 2007-2011 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
  
  #include <limits.h>
  
  #include "minus-zero.h"
  #include "infinity.h"
  #include "nan.h"
  #include "macros.h"
  
  int
  main ()
  {
    /* Finite values.  */
    ASSERT (!isnanf (3.141f));
    ASSERT (!isnanf (3.141e30f));
    ASSERT (!isnanf (3.141e-30f));
    ASSERT (!isnanf (-2.718f));
    ASSERT (!isnanf (-2.718e30f));
    ASSERT (!isnanf (-2.718e-30f));
    ASSERT (!isnanf (0.0f));
    ASSERT (!isnanf (minus_zerof));
    /* Infinite values.  */
    ASSERT (!isnanf (Infinityf ()));
    ASSERT (!isnanf (- Infinityf ()));
    /* Quiet NaN.  */
    ASSERT (isnanf (NaNf ()));
  #if defined FLT_EXPBIT0_WORD && defined FLT_EXPBIT0_BIT
    /* Signalling NaN.  */
    {
      #define NWORDS \
        ((sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
      typedef union { float value; unsigned int word[NWORDS]; } memory_float;
      memory_float m;
      m.value = NaNf ();
  # if FLT_EXPBIT0_BIT > 0
      m.word[FLT_EXPBIT0_WORD] ^= (unsigned int) 1 << (FLT_EXPBIT0_BIT - 1);
  # else
      m.word[FLT_EXPBIT0_WORD + (FLT_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
        ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
  # endif
      if (FLT_EXPBIT0_WORD < NWORDS / 2)
        m.word[FLT_EXPBIT0_WORD + 1] |= (unsigned int) 1 << FLT_EXPBIT0_BIT;
      else
        m.word[0] |= (unsigned int) 1;
      ASSERT (isnanf (m.value));
    }
  #endif
    return 0;
  }
  

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