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What are the basic rules and idioms for operator overloading?

...::ios::failbit); return is; } When implementing operator>>, manually setting the stream’s state is only necessary when the reading itself succeeded, but the result is not what would be expected. Function call operator The function call operator, used to create function objects, also k...
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'Contains()' workaround using Linq to Entities?

...sion.Lambda<Func<TEntity, bool>>(body, p)); } //Optional - to allow static collection: public static IQueryable<TEntity> WhereIn<TEntity, TValue> ( this ObjectQuery<TEntity> query, Expression<Func<TEntity, TValue>> selector, params TValue[] co...
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structure vs class in swift language

... @MichaelRapadas Numbers actually are structs in Swift. – Nikolai Ruhe Sep 16 '14 at 9:05 ...
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ALTER TABLE to add a composite primary key

I have a table called provider . I have three columns called person , place , thing . There can be duplicate persons, duplicate places, and duplicate things, but there can never be a dupicate person-place-thing combination. ...
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How can I count occurrences with groupBy?

...answered Jun 5 '17 at 21:37 user_3380739user_3380739 1,33999 silver badges1111 bronze badges ...
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psql: FATAL: database “” does not exist

... it in the past on other machines but it's giving me some trouble when installing on my macbook. I've installed the application and I ran: ...
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R cannot be resolved - Android error

I just downloaded and installed the new Android SDK. I wanted to create a simple application to test drive it. 108 Answers ...
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How to convert a string of numbers to an array of numbers?

...tion yourself like: Array.prototype.map = Array.prototype.map || function(_x) { for(var o=[], i=0; i<this.length; i++) { o[i] = _x(this[i]); } return o; }; share | improve...
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Can PHP cURL retrieve response headers AND body in a single request?

...R, 1); // ... $response = curl_exec($ch); // Then, after your curl_exec call: $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $header = substr($response, 0, $header_size); $body = substr($response, $header_size); Warning: As noted in the comments below, this may not be reliable when used ...
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Making your .NET language step correctly in the debugger

... might help. VS (2008+) can-to run as a non-admin Do any symbols load at all the second time around? You might test by breaking in (through exception or call System.Diagnostic.Debugger.Break()) Assuming that symbols load, is there a repro that you could send us? The likely difference is that the s...