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How to write a large buffer into a binary file in C++, fast?

...d::chrono::high_resolution_clock::now(); return std::chrono::duration_cast<std::chrono::milliseconds>(endTime - startTime).count(); } long long option_2(std::size_t bytes) { std::vector<uint64_t> data = GenerateData(bytes); auto startTime = std::chrono::high_resolution_clo...
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What does enumerate() mean?

...te function works as follows: doc = """I like movie. But I don't like the cast. The story is very nice""" doc1 = doc.split('.') for i in enumerate(doc1): print(i) The output is (0, 'I like movie') (1, " But I don't like the cast") (2, ' The story is very nice') ...
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COALESCE Function in TSQL

... same data-type. (If they're not the same data-type, they get implicitly cast to an appropriate data-type using data-type order of precedence.) It's like ISNULL() but for multiple parameters, rather than just two. It's also ANSI-SQL, where-as ISNULL() isn't. ...
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Making the iPhone vibrate

...AlertSound(kSystemSoundID_Vibrate) Instead of having to go thru the extra cast step (Props to @Dov) Original Answer (Swift 1.x) And, here's how you do it on Swift (in case you ran into the same trouble as I did) Link against AudioToolbox.framework (Go to your project, select your target, build phas...
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ORDER BY the IN value list

...r but note that array_position does not work with bigint and you'd need to cast: order by array_position(array[42,48,43], c.id::int); which, may lead to bugs in some cases. – aaandre Sep 27 '19 at 19:53 ...
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When should I use a struct rather than a class in C#?

...e that when a struct implements an interface - as Enumerator does - and is cast to that implemented type, the struct becomes a reference type and is moved to the heap. Internal to the Dictionary class, Enumerator is still a value type. However, as soon as a method calls GetEnumerator(), a reference-...
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XmlSerializer: remove unnecessary xsi and xsd namespaces

... that. // The factory method returns a XmlWriter, not a XmlTextWriter, so cast it. XmlTextWriter xtw = (XmlTextWriter)XmlTextWriter.Create(ms, xws); // Then we can set our indenting options (this is, of course, optional). xtw.Formatting = Formatting.Indented; // Now serialize our object. xs.Serial...
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Convert a character digit to the corresponding integer in C

... numeralChar - '0' is already of type int, so you don't need the cast. Even if it wasn't, the cast is not needed. – Alok Singhal Feb 26 '10 at 5:15 ...
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How to concatenate a std::string and an int?

...= 21; std::string result; // 1. with Boost result = name + boost::lexical_cast<std::string>(age); // 2. with C++11 result = name + std::to_string(age); // 3. with FastFormat.Format fastformat::fmt(result, "{0}{1}", name, age); // 4. with FastFormat.Write fastformat::write(result, name, age...
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What are the differences between a pointer variable and a reference variable in C++?

...t pointer's target can be replaced by taking its address and using a const cast. A reference's target cannot be replaced in any way short of UB. This should permit the compiler to do more optimization on a reference. share...