Function FormatMoney

src/util/moneystr.cpp:19–42

using util::TrimString;

std::string FormatMoney(const CAmount n)
{
    // Note: not using straight sprintf here because we do NOT want
    // localized number formatting.
    static_assert(COIN > 1);
    int64_t quotient = n / COIN;
    int64_t remainder = n % COIN;
    if (n < 0) {
        quotient = -quotient;
        remainder = -remainder;
    }
    std::string str = strprintf("%d.%08d", quotient, remainder);

    // Right-trim excess zeros before the decimal point:
    int nTrim = 0;
    for (int i = str.size()-1; (str[i] == '0' && IsDigit(str[i-2])); --i)
        ++nTrim;
    if (nTrim)
        str.erase(str.size()-nTrim, nTrim);

    if (n < 0)
        str.insert(uint32_t{0}, 1, '-');
    return str;
}


std::optional<CAmount> ParseMoney(const std::string& money_string)