Cpp - check if key exists in binary forcing
I have a bimap. I want to check if a key exists in my bimam. How can i do this. Here is my bimap:
namespace bimap
{
struct Name{};
struct ID{};
typedef
boost::bimaps::bimap<
boost::bimaps::set_of<
boost::bimaps::tagged<
unsigned short
, ID
>
>,
boost::bimaps::set_of<
boost::bimaps::tagged<
std::string
, Name
>
>
>
name_index_bimap;
}
I want to check if "Name" exists.
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1 answer
This is explained quite clearly in this example . In your case, it should look like this:
name_index_map your_map;
name_index_map::right_const_iterator it = your_map.by<Name>().find("some name");
if(it == your_map.right.end()) {
// name does not exists
}
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