windows-server-2003/shell/osshell/accesory/calc/unifunc.c

/****************************Module*Header***********************************\
* Module Name: UNIFUNC.C
*
* Module Descripton: Number to string conversion routines for Unicode
*
* Warnings:
*
* Created:  22-Aug-1995
*
* Author:   JonPa
\****************************************************************************/
#include <windows.h>
#include "scicalc.h"

#define CCH_DWORD   15  // enough for 9 chars in 2^32 + sign, zterm + slop

//
// NOTE!
//
//  Even though this function uses psz++ and psz--,
//      **IT IS STILL INTERNATIONAL SAFE!**
//
//  That is because we put the chars in the string, and
//  we are only ever using chars that are single byte in ALL
//  code pages ('0'..'9').
//
TCHAR *UToDecT( UINT value, TCHAR *sz) {
    TCHAR szTmp[CCH_DWORD];
    LPTSTR psz = szTmp;
    LPTSTR pszOut;

    do {
        *psz++ = TEXT('0') + (value % 10);

        value = value / 10;
    } while( value != 0 );

    for( psz--, pszOut = sz; psz >= szTmp; psz-- )
        *pszOut++ = *psz;

    *pszOut = TEXT('\0');

    return sz;
}