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
37