1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2014 The Bitcoin Core developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
6 #include "utilmoneystr.h"
8 #include "primitives/transaction.h"
9 #include "tinyformat.h"
10 #include "utilstrencodings.h"
14 string FormatMoney(const CAmount& n, bool fPlus)
16 // Note: not using straight sprintf here because we do NOT want
17 // localized number formatting.
18 int64_t n_abs = (n > 0 ? n : -n);
19 int64_t quotient = n_abs/COIN;
20 int64_t remainder = n_abs%COIN;
21 string str = strprintf("%d.%08d", quotient, remainder);
23 // Right-trim excess zeros before the decimal point:
25 for (int i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
28 str.erase(str.size()-nTrim, nTrim);
31 str.insert((unsigned int)0, 1, '-');
32 else if (fPlus && n > 0)
33 str.insert((unsigned int)0, 1, '+');
38 bool ParseMoney(const string& str, CAmount& nRet)
40 return ParseMoney(str.c_str(), nRet);
43 bool ParseMoney(const char* pszIn, CAmount& nRet)
47 const char* p = pszIn;
55 int64_t nMult = CENT*10;
56 while (isdigit(*p) && (nMult > 0))
58 nUnits += nMult * (*p++ - '0');
67 strWhole.insert(strWhole.end(), *p);
72 if (strWhole.size() > 10) // guard against 63 bit overflow
74 if (nUnits < 0 || nUnits > COIN)
76 int64_t nWhole = atoi64(strWhole);
77 CAmount nValue = nWhole*COIN + nUnits;