/* Decimal 64-bit format module header for the decNumber C Library.

   Copyright (C) 2005-2018 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 64-bit format module header				      */

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

#if !defined(DECIMAL64)

  #define DECIMAL64

  #define DEC64NAME	"decimal64"		      /* Short name   */

  #define DEC64FULLNAME "Decimal 64-bit Number"       /* Verbose name */

  #define DEC64AUTHOR	"Mike Cowlishaw"	      /* Who to blame */

  /* parameters for decimal64s					      */

  #define DECIMAL64_Bytes  8		/* length		      */

  #define DECIMAL64_Pmax   16		/* maximum precision (digits) */

  #define DECIMAL64_Emax   384		/* maximum adjusted exponent  */

  #define DECIMAL64_Emin  -383		/* minimum adjusted exponent  */

  #define DECIMAL64_Bias   398		/* bias for the exponent      */

  #define DECIMAL64_String 24		/* maximum string length, +1  */

  #define DECIMAL64_EconL  8		/* exp. continuation length   */

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

  #define DECIMAL64_Ehigh  (DECIMAL64_Emax+DECIMAL64_Bias-DECIMAL64_Pmax+1)

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

  #if defined(DECNUMDIGITS)

    #if (DECNUMDIGITS

      #error decimal64.h needs pre-defined DECNUMDIGITS>=16 for safe use

    #endif

  #endif

  #ifndef DECNUMDIGITS

    #define DECNUMDIGITS DECIMAL64_Pmax /* size if not already defined*/

  #endif

  #ifndef DECNUMBER

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

  #endif

  /* Decimal 64-bit type, accessible by bytes			      */

  typedef struct {

    uint8_t bytes[DECIMAL64_Bytes];	/* decimal64: 1, 5, 8, 50 bits*/

    } decimal64;

  /* 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 "decimal64Symbols.h"

  #ifdef __cplusplus

  extern "C" {

  #endif

  /* String conversions 					      */

  decimal64 * decimal64FromString(decimal64 *, const char *, decContext *);

  char * decimal64ToString(const decimal64 *, char *);

  char * decimal64ToEngString(const decimal64 *, char *);

  /* decNumber conversions					      */

  decimal64 * decimal64FromNumber(decimal64 *, const decNumber *,

				  decContext *);

  decNumber * decimal64ToNumber(const decimal64 *, decNumber *);

  /* Format-dependent utilities 				      */

  uint32_t    decimal64IsCanonical(const decimal64 *);

  decimal64 * decimal64Canonical(decimal64 *, const decimal64 *);

  #ifdef __cplusplus

  }

  #endif

#endif