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C default arguments

... present depending on the required arguments, and printf(3) reads a format string that specifies how many arguments there will be. Both use varargs quite safely and effectively, and though you can certainly screw them up, printf() especially seems to be quite popular. – Chris L...
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Is C++14 adding new keywords to C++?

...ch else namespace static_assert using char enum new static_cast virtual char16_t explicit noexcept struct void char32_t export nullptr switch ...
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Use C++ with Cocoa Instead of Objective-C?

...-runtime.h> #include <iostream> extern "C" int NSRunAlertPanel(CFStringRef strTitle, CFStringRef strMsg, CFStringRef strButton1, CFStringRef strButton2, CFStringRef strButton3, ...); int main(int argc, char** argv) { id a...
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Uncaught SyntaxError: Unexpected token with JSON.parse

...ect. (creating from an object literal) JSON.parse() is used to convert a string containing JSON notation into a Javascript object. Your code turns the object into a string (by calling .toString()) in order to try to parse it as JSON text. The default .toString() returns "[object Object]", which i...
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Unable to find valid certification path to requested target - error even after cert imported

... javax.net.ssl.*; public class InstallCert { public static void main(String[] args) throws Exception { String host; int port; char[] passphrase; if ((args.length == 1) || (args.length == 2)) { String[] c = args[0].split(":"); host = c[0]; port = (c.lengt...
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How to wait for 2 seconds?

... The documentation for WAITFOR() doesn't explicitly lay out the required string format. This will wait for 2 seconds: WAITFOR DELAY '00:00:02'; The format is hh:mi:ss.mmm. share | improve th...
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Replace all 0 values to NA

... "complete.obs". Typically, however, this is unsatisfactory as it leads to extra information loss. 2. Instead of running some sort of loop, in the solution I use df == 0 vectorization. df == 0 returns (try it) a matrix of the same size as df, with the entries TRUE and FALSE. Further, we are also al...
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Regular expression to extract text between square brackets

Simple regex question. I have a string on the following format: 14 Answers 14 ...
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Unioning two tables with different number of columns

... For the null value, this hack worked for me: 'SomeString' as DummyColumn. Basically, you just replace NULL with some value. This also worked when used with groupby. – Saurabh Jain Feb 27 at 6:27 ...
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How to prevent multiple instances of an Activity when it is launched with different Intents

...new App()); if(!IsTaskRoot) { Intent intent = Intent; string action = intent.Action; if(intent.HasCategory(Intent.CategoryLauncher) && action != null && action.Equals(Intent.ActionMain, System.StringComparison.OrdinalIgnoreCase)) { System.Cons...