c# - Is there a built in type for a lookup/reverse lookup table? -

-

this question has answer here:

i'm trying implement baudot character encoding. right now, i'm using 2 dictionaries mirrors of each other:

dictionary<char, int> lookup = new dictionary<char, int> {     { ' ', 0x100100 },     { '-', 0x011000 },     { '/', 0x010111 },     { '0', 0x001101 },     { '1', 0x011101 },     ... };  dictionary<int, char> reverse = new dictionary<int, char> {     { 0x100100, ' ' },     { 0x011000, '-' },     { 0x010111, '/' },     { 0x001101, '0' },     { 0x011101, '1' },     ... };

is there built in type handles already? like:

var lookup = new lookup<int, char>(); lookup.getbykey(0x100100); lookup.getbyvalue('c');

i couldn't find when searched 'reverse lookup' or 'lookup table', seemed related dns or linqtosql.

(i'm using baudot because it's necessary cospas sarsat devices)

i think in need of bi-directional dictionary. there many such implementations available. 1 in link though :

http://blogs.microsoft.co.il/blogs/ranw/bdirectional.txt

the pre-requisite being key , value should not of same type, in case applies.


Comments

Post a Comment

Popular posts from this blog

java - WrongTypeOfReturnValue exception thrown when unit testing using mockito -

-
my test list<person> mylist; @test public void testisvalidperson() { mylist = new arraylist<person>(); mylist.add(new person("tom")); when(persondao.get(person)).thenreturn(mylist); when((persondao.get(person)).isempty()).thenreturn(false);//------exception thrown boolean result = service.isvalid("tom"); assertfalse(result); } method tested: public boolean isvalid(string person){ persondao = new persondao(); person personobj = new person(person); return (persondao.get(person).isempty())?false : true; } exception thrown: org.mockito.exceptions.misusing.wrongtypeofreturnvalue: boolean cannot returned get() get() should return list *** if you're unsure why you're getting above error read on. due nature of syntax above problem might occur because: 1. exception *might* occur in wrongly written multi-threaded tests. please refer mockito faq on limitations of concurrency testing. 2. sp
Read more

php - Magento - Deleted Base url key -

-
i working on cleaning url: http://mydomain.com/shop/shop/deals i going through settings in configuration tab in admin panel on magento , change secure , unsecure base urls remove first base url "shop" web page read: http://mydomain.com/shop/deals so changed unsecure base urls mydomain.com/shop mydomain.com , secure 12.345.67.89/shop 12.345.67.89. wrong thing do. i cannot reload page or admin console. how access these files through ftp , change correctly there?? when make changes in admin panel changes made in database not in file. have make changes in database. 1.go database , select core_config_data table under table find web/unsecure/base_url , web/secure/base_url . make changes here. don't forget clear cache in var/cache folder
Read more

android - How to disable Button if EditText is empty ? -

-
i have edittext , button in application. when button clicked,the text entered in edittext added listview. i want disable button if edittext empty.how ? this code button click imagebutton imb=(imagebutton)findviewbyid(r.id.btn_send); imb.setonclicklistener(new onclicklistener() { @override public void onclick(view arg0) { edittext et = (edittext)findviewbyid(r.id.edittext1); string str = et.gettext().tostring(); web1.add(str); toast.maketext(shoutsingleprogram.this, "you entered...."+str, toast.length_short).show(); adapter1.notifydatasetchanged(); et.settext(""); } }); } how can ? edittext1.addtextchangedlistener(new textwatcher() { @override public void ontextchanged(charsequence s, int start, int before, in
Read more