访问在 C++ 函数内部的结构中定义的枚举类属性

access enum class properties which defined in struct inside a function in c++

本文关键字：定义 枚举 属性 结构 C++ 函数 内部 访问      更新时间：2023-10-16

如何访问枚举类中定义的结构属性。错误是"错误：'e'不是类、命名空间或枚举"

enum class pay_type
{
    hourly, salary
};
struct employee
{
    string first_name;        
    string last_name;         
    pay_type pay_kind;        
    double pay_unit_amount;   
};
istream& operator >> (std::istream& is, employee& e)
{
    is >> e.first_name;
    is >> e.last_name;
    if (e.pay_kind == pay_type::hourly && e.pay_kind == pay_type::salary)
    {
        is >> e::pay_kind;
    }
    is >> e.pay_unit_amount;
    return is;
}

你需要的是：

std::istream& operator >> (std::istream& is, employee& e)
{
    is >> e.first_name;
    is >> e.last_name;
    // Read the pay kind as an integer.
    // Check to make sure that the value is acceptable.
    int payKind;
    is >> payKind;    
    if (payKind == pay_type::hourly || payKind == pay_type::salary)
    {
       e.pay_kind = static_cast<pay_type>(payKind);
    }
    else
    {
       // Deal with error condition
    }
    is >> e.pay_unit_amount;
    return is;
}
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