1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2014 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
6 #include "utilmoneystr.h"
9 #include "tinyformat.h"
13 string FormatMoney(int64_t n, bool fPlus)
15 // Note: not using straight sprintf here because we do NOT want
16 // localized number formatting.
17 int64_t n_abs = (n > 0 ? n : -n);
18 int64_t quotient = n_abs/COIN;
19 int64_t remainder = n_abs%COIN;
20 string str = strprintf("%d.%08d", quotient, remainder);
22 // Right-trim excess zeros before the decimal point:
24 for (int i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
27 str.erase(str.size()-nTrim, nTrim);
30 str.insert((unsigned int)0, 1, '-');
31 else if (fPlus && n > 0)
32 str.insert((unsigned int)0, 1, '+');
37 bool ParseMoney(const string& str, int64_t& nRet)
39 return ParseMoney(str.c_str(), nRet);
42 bool ParseMoney(const char* pszIn, int64_t& nRet)
46 const char* p = pszIn;
54 int64_t nMult = CENT*10;
55 while (isdigit(*p) && (nMult > 0))
57 nUnits += nMult * (*p++ - '0');
66 strWhole.insert(strWhole.end(), *p);
71 if (strWhole.size() > 10) // guard against 63 bit overflow
73 if (nUnits < 0 || nUnits > COIN)
75 int64_t nWhole = atoi64(strWhole);
76 int64_t nValue = nWhole*COIN + nUnits;