Map with string key and wstring[] value

[campesr]

Hi!

I'd like to have a map with string keys, and wstring[] (arrays) values
in c++.

I thought map<string, wstring[]would work out, but it doesn't (at
least I think so).

Additionally I'd like to know what's the easiest way to populate such
a map.

Would - mymap["somekey"] = {L"My Unicode value one", L"My other
unicode value"}; - work?

Many thanks in advance.

[Victor Bazarov]

campesr wrote:

I'd like to have a map with string keys, and wstring[] (arrays) values
in c++.

You can't do that. The stored value has to satisfy certain requirements
(be copy-constructible and assignable), and arrays don't.

I thought map<string, wstring[]would work out, but it doesn't (at
least I think so).

Additionally I'd like to know what's the easiest way to populate such
a map.

Would - mymap["somekey"] = {L"My Unicode value one", L"My other
unicode value"}; - work?

No. The closest you can get to what you want is to have

std::map<string, std::vector<wstring

..

V
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[campesr]

On 23 Mai, 17:25, Victor Bazarov <[e-mail]:

campesr wrote:

I'd like to have a map with string keys, and wstring[] (arrays) values
in c++.

You can't do that. The stored value has to satisfy certain requirements
(be copy-constructible and assignable), and arrays don't.

I thought map<string, wstring[]would work out, but it doesn't (at
least I think so).

Additionally I'd like to know what's the easiest way to populate such
a map.

Would - mymap["somekey"] = {L"My Unicode value one", L"My other
unicode value"}; - work?

No. The closest you can get to what you want is to have

std::map<string, std::vector<wstring

.

V
--
Please remove capital 'A's when replying by e-mail
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Thanks.

[Frank Birbacher]

Hi!

Victor Bazarov schrieb:

No. The closest you can get to what you want is to have

std::map<string, std::vector<wstring

I suggest to try a deque because it offers better or equally good time
complexity for all operations:

map<string, deque<wstring

:)

Regards,
Frank

[Victor Bazarov]

Frank Birbacher wrote:

Hi!

Victor Bazarov schrieb:

>No. The closest you can get to what you want is to have

std::map<string, std::vector<wstring

I suggest to try a deque because it offers better or equally good time
complexity for all operations:

map<string, deque<wstring

:)

Except that std::deque does not have the same property that may be
important to the OP -- the data are not stored contiguously. The
storage of a vector can be easily used where an array can be used (like
passing it to a third-party library that expects an array via a pointer
to the first element).

V
--
Please remove capital 'A's when replying by e-mail
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[Frank Birbacher]

Hi!

Victor Bazarov schrieb:

Except that std::deque does not have the same property that may be
important to the OP -- the data are not stored contiguously.

Yes, right. I should have mentioned it. I'm sorry.

Frank

[campesr]

On 23 Mai, 22:33, Frank Birbacher <[e-mail]:

Hi!

Victor Bazarov schrieb:

Except that std::deque does not have the same property that may be
important to the OP -- the data are not stored contiguously.

Yes, right. I should have mentioned it. I'm sorry.

Frank

OK. Many thanks to all of you.