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Generate a random alphanumeric string in Cocoa

... NSString *uuid = [UUID UUID].UUIDString; will give you error "Use of undeclared identifier UUID", so just a small change in code use NSString *uuid = [NSUUID UUID].UUIDString; – Abbas Mulani Oct 27 '16 at 14:50 ...
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How to convert float to int with Java

... rint is banker's rounding; it helps reduce errors that can appear if you consistently round 0.5 up or down. – prosfilaes Oct 6 '19 at 9:05 ...
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Remove a prefix from a string [duplicate]

... +1 Concise. But can you make it Raise something in the error case, and still fit it in 2 lines x 80 columns? – personal_cloud Sep 22 '17 at 23:26 3 ...
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Checking length of dictionary object [duplicate]

...th of my dictionary to test whether it had any objects in it. For regular error handling I guess you'd just check for null on a dictionary but just wanted to see how many returned and was added to my dictionary. So the problem was not how to iterate, just see how to get the count which I just thou...
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Convert a character digit to the corresponding integer in C

...r other replies, this is fine: char c = '5'; int x = c - '0'; Also, for error checking, you may wish to check isdigit(c) is true first. Note that you cannot completely portably do the same for letters, for example: char c = 'b'; int x = c - 'a'; // x is now not necessarily 1 The standard guara...
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Reactive Extensions bug on Windows Phone

... answer you're looking for? Browse other questions tagged c# .net compiler-errors windows-phone system.reactive or ask your own question.
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Is it possible to search for a particular filename on GitHub?

... This is no longer possible. The searches you link return the following error: "We could not perform this search. Must include at least one user, organization, or repository" – hedgie Sep 6 '16 at 16:15 ...
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Check/Uncheck checkbox with JavaScript (jQuery or vanilla)?

... This has worked for me. Without the array index, I were getting undefined error. Thanks so much, saved my day. – Neri Apr 15 '18 at 12:37 add a comment  | ...
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Add x and y labels to a pandas plot

... When I did ax.set_ylabel("y label"), it returns an error 'list' object is not callable. Any idea? – Ledger Yu Sep 5 '17 at 9:44 ...
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Rule-of-Three becomes Rule-of-Five with C++11?

...cial functions. This is good because a missing declaration turns a runtime error into a compilation error now (or at least a warning). As a C++03 compatibility measure some operations are still generated but this generation is deemed deprecated and should at least produce a warning in C++0x mode. D...