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How can I use “sizeof” in a preprocessor macro?

... The macro does not work in GNU gcc (tested at version 4.8.4) (Linux). At the ((void)sizeof(... it errors with expected identifier or '(' before 'void' and expected ')' before 'sizeof'. But in principle size_t x = (sizeof(... instead does work as intended. Yo...
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Simplest way to check if key exists in object using CoffeeScript

... referring to keys, and in when referring to array values: val in arr will test whether val is in arr.) thejh's answer is correct if you want to ignore the object's prototype. Jimmy's answer is correct if you want to ignore keys with a null or undefined value. ...
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How do I capitalize first letter of first name and last name in C#?

... String test = "HELLO HOW ARE YOU"; string s = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(test); The above code wont work ..... so put the below code by convert to lower then apply the function String test = "HELLO HOW ARE ...
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What is the runtime performance cost of a Docker container?

... shown in the Redis latency results lower down). They also ran latency tests on a few specific services, such as Redis. You can see that above 20 client threads, highest latency overhead goes Docker NAT, then KVM, then a rough tie between Docker host/native. Just because it’s a really usef...
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Is embedding background image data into CSS as Base64 good or bad practice?

... My practice and tests does not confirm your statement. Sorry. – TomeeNS May 26 '17 at 15:49 add a comment ...
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What does do?

...E9 or IE8, then I would recommend using the tag. If you only support the latest browsers (IE11 and/or Edge) then I would consider dropping this tag altogether. If you use Twitter Bootstrap and need to eliminate validation warnings, this tag must appear in its specified order. Additional info below: ...
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Gradle buildscript dependencies

...ptional" keywords for dependencies in addition to the usual "compile" and "testCompile" keywords. Note: The war plugin already offers the "provided" keyword, you just need propdeps for jar projects that will be deployed inside a war. – Powerlord Sep 24 '15 at ...
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Using Case/Switch and GetType to determine the object [duplicate]

...ry is a fine solution in my opinion. If it's more than one or two types to test, I'd usually use that. Well, or just use polymorphism in the first place to avoid switching on types. – OregonGhost Apr 2 '09 at 9:12 ...
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Regex: match everything but specific pattern

... This answer is wrong, a quick test shows that. I think what you meant is ^((?!foo).)*$ (stackoverflow.com/a/406408/3964381) – gilad mayani Jun 22 '17 at 12:28 ...
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Detect if Android device has Internet connection

...om").openConnection()); urlc.setRequestProperty("User-Agent", "Test"); urlc.setRequestProperty("Connection", "close"); urlc.setConnectTimeout(1500); urlc.connect(); return (urlc.getResponseCode() == 200); } catch (IOException e) { ...