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推进: enum 的bimap
原标题:boost::bimap for enum

我试图为C++的昆虫建立一个简单的双向查看设施。 我有单向检查的罚款...

enum MyEnum
{ 
    One, 
    Two, 
    Three 
};

const boost::unordered_map<MyEnum,std::string> MyEnumMap = map_list_of
    (One, "One")
    (Two, "Two")
    (Three, "Three");

然后看一看

MyEnumMap.at(One)

这工作但只允许基于密钥的查看 。 我喜欢使用双向查看容器, 如 推进: bimap 来方便地根据值和密钥进行反向查看 。 它似乎不像地图列表与推进兼容 :: bimap though. bimap 。

Firstly, should I still be using map_list_of with boost::bimap, or is another type required?
The maps will all be a basic (Enum, string) type.

其次,我是否仍然可以将地图简单地定义为上面的康斯特?我试图使地图尽可能容易地更新和保持,而不必过多地添加更多的类比。感谢您的洞察力。

最佳回答

尝试直接使用列表(_O):

typedef boost::bimap< MyEnum, std::string > bm_type;
const bm_type MyEnumMap =
  boost::assign::list_of< bm_type::relation >
    ( One, "One" )
    ( Two, "Two" )
    ( Three, "Three" );

注意关联的用法, 而不是值类型 。

问题回答

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