CODEWITHSUNDEEP
listdata-structuresdictionarysettcl
Vahagn
Vahagn

Reputation: 4820

Is there a data structure similar to std::set in TCL?

TCL has a data structure called dict which maintains a collection of key-value pairs.

Is there another data structure which maintains a collection of keys (with no values)?

If no, then maybe someone already wrote a simple adapter on dict with empty values?

Upvotes: 2

Views: 1115

Answers (3)

njamescouk
njamescouk

Reputation: 179

Another approach would be to accumulate everything into say, $bucket.

Then do:

set uniqueItems [lsort -unique $bucket]

Upvotes: 1

unNamed
unNamed

Reputation: 1019

Just use a single list.

set example [list "key1" "key2" "key3"]
if {[lsearch -exact $example "key3"] != -1} {
    puts "found your key!"
} else {
    puts "your key is not in the list"
}

Maybe you should ask a more specific question to get a more accurate answer. An alternative for dict is array which doesn't preserve the order of keys.

Upvotes: 1

schlenk
schlenk

Reputation: 7237

You could use the tcllib package ::struct::set.

http://tcllib.sourceforge.net/doc/struct_set.html

Upvotes: 4

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