src/decNumber/decPacked.h

/* */
   1 // vim: filetype=c:tabstop=4:ai:expandtab
   2 // SPDX-License-Identifier: ICU
   3 // scspell-id: d14aead0-f62c-11ec-ba18-80ee73e9b8e7
   4 /* ------------------------------------------------------------------- */
   5 /* Packed Decimal conversion module header                             */
   6 /* ------------------------------------------------------------------- */
   7 /*                                                                     */
   8 /* Copyright (c) IBM Corporation, 2000, 2005.  All rights reserved.    */
   9 /*                                                                     */
  10 /* This software is made available under the terms of the ICU License. */
  11 /*                                                                     */
  12 /* The description and User's Guide ("The decNumber C Library") for    */
  13 /* this software is called decNumber.pdf.  This document is available, */
  14 /* together with arithmetic and format specifications, testcases, and  */
  15 /* Web links, on the General Decimal Arithmetic page.                  */
  16 /*                                                                     */
  17 /* Please send comments, suggestions, and corrections to the author:   */
  18 /*   mfc@uk.ibm.com                                                    */
  19 /*   Mike Cowlishaw, IBM Fellow                                        */
  20 /*   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK          */
  21 /*                                                                     */
  22 /* ------------------------------------------------------------------- */
  23 
  24 #if !defined(DECPACKED)
  25 # define DECPACKED
  26 # define DECPNAME     "decPacked"                       /* Short name */
  27 # define DECPFULLNAME "Packed Decimal conversions"    /* Verbose name */
  28 # define DECPAUTHOR   "Mike Cowlishaw"                /* Who to blame */
  29 
  30 # define DECPACKED_DefP 32             /* default precision           */
  31 
  32 # if !defined(DECNUMDIGITS)
  33 #  define DECNUMDIGITS DECPACKED_DefP  /* size if not already defined */
  34 # endif /* if !defined(DECNUMDIGITS) */
  35 # include "decNumber.h"                /* context and number library  */
  36 
  37   /* Sign nibble constants                                            */
  38 # if !defined(DECPPLUSALT)
  39 #  define DECPPLUSALT  0x0A   /* alternate plus  nibble               */
  40 #  define DECPMINUSALT 0x0B   /* alternate minus nibble               */
  41 #  define DECPPLUS     0x0C   /* preferred plus  nibble               */
  42 #  define DECPMINUS    0x0D   /* preferred minus nibble               */
  43 #  define DECPPLUSALT2 0x0E   /* alternate plus  nibble               */
  44 #  define DECPUNSIGNED 0x0F   /* alternate plus  nibble (unsigned)    */
  45 # endif /* if !defined(DECPPLUSALT) */
  46 
  47   /* ---------------------------------------------------------------- */
  48   /* decPacked public routines                                        */
  49   /* ---------------------------------------------------------------- */
  50   /* Conversions                                                      */
  51   uint8_t * decPackedFromNumber(uint8_t *, int32_t, int32_t *,
  52                                 const decNumber *);
  53   decNumber * decPackedToNumber(const uint8_t *, int32_t,
  54                                 const int32_t *, decNumber *);
  55 #endif
/* */
root/src/decNumber/decPacked.h
