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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// File: Number.h
//
//
#ifndef _NUMBER_H_
#define _NUMBER_H_
#include <pshpack1.h>
#define NUMBER_MAXDIGITS 50
static const double LOG10V2 = 0.30102999566398119521373889472449;
// DRIFT_FACTOR = 1 - LOG10V2 - epsilon (a small number account for drift of floating point multiplication)
static const double DRIFT_FACTOR = 0.69;
struct NUMBER {
int precision;
int scale;
int sign;
wchar_t digits[NUMBER_MAXDIGITS + 1];
wchar_t* allDigits;
NUMBER() : precision(0), scale(0), sign(0), allDigits(NULL) {}
};
class COMNumber
{
public:
static FCDECL3_VII(Object*, FormatDecimal, FC_DECIMAL value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE);
static FCDECL3_VII(Object*, FormatDouble, double value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE);
static FCDECL3_VII(Object*, FormatSingle, float value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE);
static FCDECL3(Object*, FormatInt32, INT32 value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE);
static FCDECL3(Object*, FormatUInt32, UINT32 value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE);
static FCDECL3_VII(Object*, FormatInt64, INT64 value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE);
static FCDECL3_VII(Object*, FormatUInt64, UINT64 value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE);
static FCDECL2(FC_BOOL_RET, NumberBufferToDecimal, BYTE* number, DECIMAL* value);
static FCDECL2(FC_BOOL_RET, NumberBufferToDouble, BYTE* number, double* value);
static wchar_t* Int32ToDecChars(__in wchar_t* p, unsigned int value, int digits);
};
#include <poppack.h>
#endif // _NUMBER_H_
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