sys/arch/vax/include/float.h

   1 /*      $NetBSD: float.h,v 1.5.46.3 2004/09/21 13:23:43 skrll Exp $     */
   2
   3 /*
   4  * Copyright (c) 1989 Regents of the University of California.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)float.h     7.2 (Berkeley) 6/28/90
  32  */
  33
  34 #ifndef _VAX_FLOAT_H_
  35 #define _VAX_FLOAT_H_
  36
  37 #include <sys/cdefs.h>
  38 #include <sys/featuretest.h>
  39
  40 #define FLT_RADIX       2               /* b */
  41 #define FLT_ROUNDS      1               /* FP addition rounds to nearest */
  42
  43 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
  44     !defined(_XOPEN_SOURCE) || \
  45     ((__STDC_VERSION__ - 0) >= 199901L) || \
  46     ((_POSIX_C_SOURCE - 0) >= 200112L) || \
  47     ((_XOPEN_SOURCE  - 0) >= 600) || \
  48     defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
  49 #if __GNUC_PREREQ__(3, 3)
  50 #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
  51 #else
  52 #define FLT_EVAL_METHOD 0               /* evaluate all operations and
  53                                            constants just to the range and
  54                                            precision of the type */
  55 #endif /* GCC >= 3.3 */
  56 #endif /* !defined(_ANSI_SOURCE) && ... */
  57
  58 #define FLT_MANT_DIG    24              /* p */
  59 #define FLT_EPSILON     1.19209290E-7F  /* b**(1-p) */
  60 #define FLT_DIG         6               /* floor((p-1)*log10(b))+(b == 10) */
  61 #define FLT_MIN_EXP     (-127)          /* emin */
  62 #define FLT_MIN         2.93873588E-39F /* b**(emin-1) */
  63 #define FLT_MIN_10_EXP  (-38)           /* ceil(log10(b**(emin-1))) */
  64 #define FLT_MAX_EXP     127             /* emax */
  65 #define FLT_MAX         1.70141173E+38F /* (1-b**(-p))*b**emax */
  66 #define FLT_MAX_10_EXP  38              /* floor(log10((1-b**(-p))*b**emax)) */
  67
  68 #define DBL_MANT_DIG    56
  69 #define DBL_EPSILON     2.77555756156289135E-17
  70 #define DBL_DIG         16
  71 #define DBL_MIN_EXP     (-127)
  72 #define DBL_MIN         2.938735877055718770E-39
  73 #define DBL_MIN_10_EXP  (-38)
  74 #define DBL_MAX_EXP     127
  75 #define DBL_MAX         1.701411834604692294E+38
  76 #define DBL_MAX_10_EXP  38
  77
  78 #define LDBL_MANT_DIG   DBL_MANT_DIG
  79 #define LDBL_EPSILON    DBL_EPSILON
  80 #define LDBL_DIG        DBL_DIG
  81 #define LDBL_MIN_EXP    DBL_MIN_EXP
  82 #define LDBL_MIN        DBL_MIN
  83 #define LDBL_MIN_10_EXP DBL_MIN_10_EXP
  84 #define LDBL_MAX_EXP    DBL_MAX_EXP
  85 #define LDBL_MAX        DBL_MAX
  86 #define LDBL_MAX_10_EXP DBL_MAX_10_EXP
  87
  88 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
  89     !defined(_XOPEN_SOURCE) || \
  90     ((__STDC_VERSION__ - 0) >= 199901L) || \
  91     ((_POSIX_C_SOURCE - 0) >= 200112L) || \
  92     ((_XOPEN_SOURCE  - 0) >= 600) || \
  93     defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
  94 #define DECIMAL_DIG     18              /* ceil((1+p*log10(b))-(b==10) */
  95 #endif
  96 #endif  /* _VAX_FLOAT_H_ */