money.cpp

来自「c++编程宝典源码及Quincy99编译器 是《标准C++编程宝典》电子工业出」· C++ 代码 · 共 23 行

#include <iomanip>
#include <Money.h>

Money::Money(double val)
{
    // ensure that the value is only 2 decimal places
    // and rounded up to the nearest penny
    long int nval = (long)((val + .005) * 100);
    float cents = nval % 100;
    cents /= 100;
    value = (nval / 100) + cents;
}

std::ostream& operator<<(std::ostream& os, const Money& curr)
{
    os << '$' 
       << std::setw(10) 
       << std::setprecision(2) 
       << std::setiosflags(std::ios::fixed)
       << curr.value;
}