swift - Why am I getting 'fatal error: Array index out of range' with this code? -

-

i have following constants class declared such. whenever outside class callsconstants.drawingtypes or constants.colorflags, following error:

fatal error: array index out of range

i'm afraid might misunderstanding static keyword, intent of methods , members of class arrange set of constants , arrays of used in application.

is there obvious error i'm missing here, in declarations or otherwise? 

import foundation  class constants {       enum drawingtypes: string, printable {         case = "any"         case line = "line"         case cubicbezier = "cubic bezier"         case squarebezier = "square bezier"         case linefilled = "line filled"         case cubicfilled = "cubic filled"         case squarebezierfilled = "square bezier filled"         case multilayer = "multilayer"          var description: string { return rawvalue }     }      enum colorflags : string, printable     {         case darks = "darks"         case pastels = "pastels"         case fullrange = "full range"         case greys = "greys"          var description : string {return rawvalue }     }      static let allcolorflags = [colorflags.darks,                                 colorflags.pastels,                                 colorflags.fullrange,                                 colorflags.greys]      static let alldrawingtypes = [drawingtypes.any,                                  drawingtypes.line,                                 drawingtypes.cubicbezier,                                 drawingtypes.squarebezier,                                 drawingtypes.linefilled,                                 drawingtypes.cubicfilled,                                 drawingtypes.squarebezierfilled,                                 drawingtypes.multilayer]       class func randomtypeincludingmulti() -> drawingtypes {         return randomtype(true)     }      class func randomtype(includingmulti : bool) -> drawingtypes {         let min = 1         var max = constants.alldrawingtypes.count          if includingmulti == false             { max = max - 1 }          let = int(arc4random_uniform(uint32(max - min))) + min         return constants.alldrawingtypes[i]     }      class func randomcolorflag() -> colorflags {         let min = 0         let max = constants.allcolorflags.count         let = int(arc4random_uniform(uint32(max - min))) + min         return constants.allcolorflags[i]     }  }

edit :

enter image description here

after debugging more, noticed following happens on line 65 (only sometimes!) 

return constants.alldrawingtypes[i]

when method goes find indexed item, upon return, values max, min , i reset somehow, how error occurs. (you can see values in debug area). clearly, constants.alldrawingtypes[-1074625864] going throw exception. question is, why values being reset after going static array? i'm thinking not understanding statics correctly...


Comments

Post a Comment

Popular posts from this blog

python - How to create jsonb index using GIN on SQLAlchemy? -

-
here's current code creating index jsonb. index("mytable_data_idx_id_key", mytable.data['id'].astext, postgresql_using='gin') but got error. sqlalchemy.exc.programmingerror: (psycopg2.programmingerror) data type text has no default operator class access method "gin" hint: must specify operator class index or define default operator class data type. [sql: "create index event_data_idx_id_key on event using gin ((data ->> 'id'))"] is there way create index on sqlalchemy? the postgresql specific sqlalchemy docs @ http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html#operator-classes mention postgresql_ops dictionary provide "operator class" used postgresql, , provide example illustrating use: index('my_index', my_table.c.id, my_table.c.data, postgresql_ops={ 'data': 'text_pattern_ops', ...
Read more

PHP DOM loadHTML() method unusual warning -

-
i had following code works fine on localhost: $document = new domdocument(); $document->loadhtml($p_result); $form = $document->getelementsbytagname('form')->item(0); // code continues using $form variable after same code updated on outside server, loadhtml() failed , issued warning. warning: domdocument::loadhtml() expects parameter 1 valid path, string given in path/name/to/script.php returned null instead of object code pretty gets fatal error. note contents of $p_result absolutely same on outside server , on localhost. but why displays kind of warning , why not work? doesn't loadhtml() expects argument 1 string in first place? why method expects parameter 1 valid path ? just make clear i'm not calling loadhtmlfile() , i'm calling loadhtml() . thanks. you're affected one of php bugs . issue present in php 5.6.8 , 5.6.9. have affected php version on server, , bug-free version on localhost. the bug forbids null ...
Read more

c# - TransactionScope not rolling back although no complete() is called -

-
i'm using transactionscope rollback transaction fail bool errorreported = false; action<importerrorlog> newerrorcallback = e => { errorreported = true; errorcallback(e); }; using (var transaction = new transactionscope()) { foreach (importtaskdefinition task in taskdefinition) { loader.load(streamfile, newerrorcallback, task.destinationtable, processingtaskid); } if (!errorreported) transaction.complete(); } i'm sure there no transactionscope started ahead or after code. i'm using entity framework insert in db. regardless state of errorreported transaction never rolled in case of error. what missing ? transactionscope sets transaction.current . that's does. wants transacted must @ property. i believe ef each time connection opened reason. probably, connection open when scope installed. open connection inside of scope or enlist manually. ef has nasty "design decision": default opens ...
Read more