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How to retrieve all keys (or values) from a std::map and put them into a vector?

...vel of your fellow programmers. Additionally, it moves functionality away from the call site. Which can make maintenance a little more difficult. I'm not sure if your goal is to get the keys into a vector or print them to cout so I'm doing both. You may try something like this: std::map<int, i...
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Why doesn't django's model.save() call full_clean()?

... The most helpful excerpt (IMHO) from the second reference: "Developing an "automatic" validation option which is both simple enough to actually be useful and robust enough to handle all the edge cases is -- if it's even possible -- far more than can be acco...
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Meaning of = delete after function declaration

... @Reb, =delete makes the method inaccessible even from contexts that can see private methods (i.e. within the class and its friends). This removes any uncertainty when you're reading the code. @Prasoon, that second example is still only deleting constructors - it would be ...
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Remove characters from NSString?

... Taken from NSString stringByReplacingOccurrencesOfString:withString: Returns a new string in which all occurrences of a target string in the receiver are replaced by another given string. - (NSString *)stringByReplacingOccurren...
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How to generate a random string in Ruby

... BTW SecureRandom was removed from ActiveSupport in version 3.2. From the changelog: "Removed ActiveSupport::SecureRandom in favor of SecureRandom from the standard library". – Marc Jan 20 '12 at 21:57 ...
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Refreshing OAuth token using Retrofit without modifying all calls

...ient)) .create(RestService.class); Warning: As Jesse Wilson (from Square) mentions here, this is a dangerous amount of power. With that being said, I definitely think this is the best way to handle something like this now. If you have any questions please don't hesitate to ask in a c...
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Git ignore file for Xcode projects

...bout this, but in practice it seems you should ignore it. # - minor tweaks from Jona and Coeur (slightly more precise xc* filtering/names) # 2014 updates: # - appended non-standard items DISABLED by default (uncomment if you use those tools) # - removed the edit that an SO.com moderator made without...
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How do I do an OR filter in a Django query?

... There is Q objects that allow to complex lookups. Example: from django.db.models import Q Item.objects.filter(Q(creator=owner) | Q(moderated=False)) share | improve this answer ...
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How to quit a java app from within the program

...hange 1 to any number you like, then when you are running your application from a script you can determine if there was an error. – StormPooper Nov 24 '11 at 12:59 ...
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Difference between WAIT and BLOCKED thread states

...nd waited on some time in millis; now Is it possible a thread can directly from waiting state to go to runnable state? since no other thread takes lock here since only single threaded? – Kanagavelu Sugumar Jun 15 '16 at 8:12 ...