本文整理汇总了C++中Quantity::unitOfMeasure方法的典型用法代码示例。如果您正苦于以下问题：C++ Quantity::unitOfMeasure方法的具体用法？C++ Quantity::unitOfMeasure怎么用？C++ Quantity::unitOfMeasure使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Quantity的用法示例。
在下文中一共展示了Quantity::unitOfMeasure方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: convert
Quantity UnitOfMeasureConversion::convert(const Quantity& quantity) const {
switch (data_->type) {
case Direct:
if (quantity.unitOfMeasure() == data_->source)
return Quantity(quantity.commodityType(),
data_->target,
quantity.amount()*data_->conversionFactor);
else if (quantity.unitOfMeasure() == data_->target)
return Quantity(quantity.commodityType(),
data_->source,
quantity.amount()/data_->conversionFactor);
else
QL_FAIL("direct conversion not applicable");
case Derived:
if (quantity.unitOfMeasure()
== data_->conversionFactorChain.first->source() ||
quantity.unitOfMeasure()
== data_->conversionFactorChain.first->target())
return data_->conversionFactorChain.second->convert(
data_->conversionFactorChain.first->convert(quantity));
else if (quantity.unitOfMeasure()
== data_->conversionFactorChain.second->source() ||
quantity.unitOfMeasure()
== data_->conversionFactorChain.second->target())
return data_->conversionFactorChain.first->convert(
data_->conversionFactorChain.second->convert(quantity));
else
QL_FAIL("derived conversion factor not applicable");
default:
QL_FAIL("unknown conversion-factor type");
}
}