How to extract the key name in hash_map

[sam]

HI,

I want to know what the key is in a hash_map object.
eg.
myhash["key_name"] = "value";

How can I extract the "key_name" from myhash?

Thanks
Sam

[Ganesh]

Use an iterator to map, and then use .first and .second on it to get
key and value.

-Ganesh

sam wrote:

HI,

I want to know what the key is in a hash_map object.
eg.
myhash["key_name"] = "value";

How can I extract the "key_name" from myhash?

Thanks
Sam

[Carlos Martinez Garcia]

sam wrote:

HI,

I want to know what the key is in a hash_map object.
eg.
myhash["key_name"] = "value";

How can I extract the "key_name" from myhash?

Thanks
Sam

I suppose hash_map to behave like map template.
With map objects, when you access objects contained through an iterator
it returns a template object of type Pair.
Pair contains two elements, called first and second.
first is the key, and second is the data associated with that key.