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/* Decimal 32-bit format module header for the decNumber C Library.

   Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.

   Contributed by IBM Corporation.  Author Mike Cowlishaw.

   This file is part of GCC.

   GCC 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, or (at your option) any later

   version.

   GCC 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.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

<http://www.gnu.org/licenses/>.  */

/* ------------------------------------------------------------------ */

/* Decimal 32-bit format module header                                */

/* ------------------------------------------------------------------ */

#if !defined(DECIMAL32)

  #define DECIMAL32

  #define DEC32NAME     "decimal32"                   /* Short name   */

  #define DEC32FULLNAME "Decimal 32-bit Number"       /* Verbose name */

  #define DEC32AUTHOR   "Mike Cowlishaw"              /* Who to blame */

  /* parameters for decimal32s */

  #define DECIMAL32_Bytes  4            /* length                     */

  #define DECIMAL32_Pmax   7            /* maximum precision (digits) */

  #define DECIMAL32_Emax   96           /* maximum adjusted exponent  */

  #define DECIMAL32_Emin  -95           /* minimum adjusted exponent  */

  #define DECIMAL32_Bias   101          /* bias for the exponent      */

  #define DECIMAL32_String 15           /* maximum string length, +1  */

  #define DECIMAL32_EconL  6            /* exp. continuation length   */

  /* highest biased exponent (Elimit-1)                               */

  #define DECIMAL32_Ehigh  (DECIMAL32_Emax+DECIMAL32_Bias-DECIMAL32_Pmax+1)

  /* check enough digits, if pre-defined                              */

  #if defined(DECNUMDIGITS)

    #if (DECNUMDIGITS<DECIMAL32_Pmax)

      #error decimal32.h needs pre-defined DECNUMDIGITS>=7 for safe use

    #endif

  #endif

  #ifndef DECNUMDIGITS

    #define DECNUMDIGITS DECIMAL32_Pmax /* size if not already defined*/

  #endif

  #ifndef DECNUMBER

    #include "decNumber.h"              /* context and number library */

  #endif

  /* Decimal 32-bit type, accessible by bytes */

  typedef struct {

    uint8_t bytes[DECIMAL32_Bytes];     /* decimal32: 1, 5, 6, 20 bits*/

    } decimal32;

  /* special values [top byte excluding sign bit; last two bits are   */

  /* don't-care for Infinity on input, last bit don't-care for NaN]   */

  #if !defined(DECIMAL_NaN)

    #define DECIMAL_NaN     0x7c        /* 0 11111 00 NaN             */

    #define DECIMAL_sNaN    0x7e        /* 0 11111 10 sNaN            */

    #define DECIMAL_Inf     0x78        /* 0 11110 00 Infinity        */

  #endif

  /* ---------------------------------------------------------------- */

  /* Routines                                                         */

  /* ---------------------------------------------------------------- */

#include "decimal32Symbols.h"

  #ifdef __cplusplus

  extern "C" {

  #endif

  /* String conversions                                               */

  decimal32 * decimal32FromString(decimal32 *, const char *, decContext *);

  char * decimal32ToString(const decimal32 *, char *);

  char * decimal32ToEngString(const decimal32 *, char *);

  /* decNumber conversions                                            */

  decimal32 * decimal32FromNumber(decimal32 *, const decNumber *,

                                  decContext *);

  decNumber * decimal32ToNumber(const decimal32 *, decNumber *);

  /* Format-dependent utilities                                       */

  uint32_t    decimal32IsCanonical(const decimal32 *);

  decimal32 * decimal32Canonical(decimal32 *, const decimal32 *);

  #ifdef __cplusplus

  }

  #endif

#endif