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std::string formatting like sprintf

...ectly, because you don't have write access to the underlying buffer (until C++11; see Dietrich Epp's comment). You'll have to do it first in a c-string, then copy it into a std::string: char buff[100]; snprintf(buff, sizeof(buff), "%s", "Hello"); std::string buffAsStdStr = buff; But I'm not...
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Use of 'const' for function parameters

... Sometimes (too often!) I have to untangle someone else's C++ code. And we all know that someone else's C++ code is a complete mess almost by definition :) So the first thing I do to decipher local data flow is put const in every variable definition until compiler starts barking. Th...
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What exactly does += do in python?

... user2357112 supports Monica 200k2020 gold badges287287 silver badges373373 bronze badges answered Jan 30 '11 at 20:31 BryanBryan ...
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Download a file from NodeJS Server using Express

...filePath, function(exists){ if (exists) { res.writeHead(200, { "Content-Type": "application/octet-stream", "Content-Disposition" : "attachment; filename=" + file}); fs.createReadStream(filePath + file).pipe(res); } else { res.writeHead(400...
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Android studio using > 100% CPU at all times - no background processes appear to be running

...iables -Xms128m -Xmx4096m -XX:MaxPermSize=1024m -XX:ReservedCodeCacheSize=200m -XX:+UseCompressedOops On Windows go to Environment Variables and find a System Variable called _JAVA_OPTIONS Increase these figures accordingly. Xmx specifies the maximum memory allocation pool for a Java Virtual M...
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MySQL Data - Best way to implement paging?

...page towards the end. As I said, it probably won't matter if you have only 200 records, but it can make a difference with larger result sets. Another advantage of this approach is that if the data changes between the calls you won't miss records or get a repeated record. This is because adding or r...
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What's the most concise way to read query parameters in AngularJS?

... 200 You can inject $routeParams (requires ngRoute) into your controller. Here's an example from th...
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C pointers : pointing to an array of fixed size

...n is by using a pointer-to-array parameter void foo(char (*p)[10]); (in C++ language this is also done with references void foo(char (&p)[10]); ). This will enable language-level type checking, which will make sure that the array of exactly correct size is supplied as an argument. In fact...
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Is passing 'this' in a method call accepted practice in java

... by Martin Fowler: Change Bidirectional Association to Unidirectional (200) Bidirectional associations are useful, but they carry a price. The price is the added complexity of maintaining the two-way links and ensuring that objects are properly created and removed. Bidirectional assoc...
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How do I programmatically determine operating system in Java?

... Chris Jester-YoungChris Jester-Young 200k4444 gold badges362362 silver badges409409 bronze badges ...