icuSources/i18n/fmtableimp.h

   1 /*
   2 *******************************************************************************
   3 * Copyright (C) 2010-2014, International Business Machines Corporation and    *
   4 * others. All Rights Reserved.                                                *
   5 *******************************************************************************
   6 */
   7
   8 #ifndef FMTABLEIMP_H
   9 #define FMTABLEIMP_H
  10
  11 #include "digitlst.h"
  12
  13 U_NAMESPACE_BEGIN
  14
  15 /**
  16  * @internal
  17  */
  18 struct FmtStackData {
  19   DigitList stackDecimalNum;   // 128
  20   //CharString stackDecimalStr;  // 64
  21   //                         -----
  22   //                         192 total
  23 };
  24
  25 /**
  26  * Maximum int64_t value that can be stored in a double without chancing losing precision.
  27  *   IEEE doubles have 53 bits of mantissa, 10 bits exponent, 1 bit sign.
  28  *   IBM Mainframes have 56 bits of mantissa, 7 bits of base 16 exponent, 1 bit sign.
  29  * Define this constant to the smallest value from those for supported platforms.
  30  * @internal
  31  */
  32 static const int64_t MAX_INT64_IN_DOUBLE = 0x001FFFFFFFFFFFFFLL;
  33
  34 U_NAMESPACE_END
  35
  36 #endif