1 // Common/IntToString.cpp

     2 

     3 #include "StdAfx.h"

     4 

     5 #include "IntToString.h"

     6 

     7 void ConvertUInt64ToString(UInt64 value, char *s, UInt32 base)

     8 {

     9   if (base < 2 || base > 36)

    10   {

    11     *s = '\0';

    12     return;

    13   }

    14   char temp[72];

    15   int pos = 0;

    16   do 

    17   {

    18     int delta = (int)(value % base);

    19     temp[pos++] = (char)((delta < 10) ? ('0' + delta) : ('a' + (delta - 10)));

    20     value /= base;

    21   }

    22   while (value != 0);

    23   do

    24     *s++ = temp[--pos];

    25   while(pos > 0);

    26   *s = '\0';

    27 }

    28 

    29 void ConvertUInt64ToString(UInt64 value, wchar_t *s)

    30 {

    31   wchar_t temp[32];

    32   int pos = 0;

    33   do 

    34   {

    35     temp[pos++] = (wchar_t)(L'0' + (int)(value % 10));

    36     value /= 10;

    37   }

    38   while (value != 0);

    39   do 

    40     *s++ = temp[--pos];

    41   while(pos > 0);

    42   *s = L'\0';

    43 }

    44 

    45 void ConvertInt64ToString(Int64 value, char *s)

    46 {

    47   if (value < 0)

    48   {

    49     *s++ = '-';

    50     value = -value;

    51   }

    52   ConvertUInt64ToString(value, s);

    53 }

    54 

    55 void ConvertInt64ToString(Int64 value, wchar_t *s)

    56 {

    57   if (value < 0)

    58   {

    59     *s++ = L'-';

    60     value = -value;

    61   }

    62   ConvertUInt64ToString(value, s);

    63 }