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Error installing mysql2: Failed to build gem native extension

...d other distributions using yum: sudo yum install mysql-devel On Mac OS X with Homebrew: brew install mysql share | improve this answer | follow | ...
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Meaning of 'const' last in a function declaration of a class?

...o in the const version. If you change the method declaration in the above example to the code below you will get some errors. void Foo() { counter++; //this works std::cout << "Foo" << std::endl; } void Foo() const { counter++; //this wil...
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Coroutine vs Continuation vs Generator

...rning, but when called will return (yield) a value and then suspend their execution. When they're called again, they will start up from where they last suspended execution and do their thing again. A generator is essentially a cut down (asymmetric) coroutine. The difference between a coroutine and ...
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ASP.NET MVC 5 - Identity. How to get current ApplicationUser

...e current ApplicationUser. That introduces a new dependency of having an extra context for starters, but going forward the user database tables change (3 times in the past 2 years) but the API is consistent. For example the users table is now called AspNetUsers in Identity Framework, and the names ...
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How can I check if character in a string is a letter? (Python)

...supper , but can you check whether or not that character is a letter? For Example: 6 Answers ...
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How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?

... That looks like unix file permissions modes to me (755=rwxr-xr-x, 644=rw-r--r--) - the old mode included the +x (executable) flag, the new mode doesn't. This msysgit issue's replies suggests setting core.filemode to false in order to get rid o...
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Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?

...ut LC_ALL=C python3 -c 'import sys; print(sys.stdout.encoding)' gives ANSI_X3.4-1968 (or perhaps something else) – Tino Sep 27 '15 at 23:01 7 ...
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How to change facet labels?

... related... if you want the panel label to be a bquote() expression (e.g., levels(x$measurements) <- c(bquote(Area ~~ (cm^2)), bquote(Length ~~ (cm)))) it will not appear in mathematical expression. How would one show expressions as facet labels? – Brian D ...
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Equivalent of strace -feopen < command > on mac os X

This is useful for debugging (hence programming related). On linux, we can use the command 1 Answer ...
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How can I round up the time to the nearest X minutes?

... new DateTime((dt.Ticks + d.Ticks - 1) / d.Ticks * d.Ticks, dt.Kind); } Example: var dt1 = RoundUp(DateTime.Parse("2011-08-11 16:59"), TimeSpan.FromMinutes(15)); // dt1 == {11/08/2011 17:00:00} var dt2 = RoundUp(DateTime.Parse("2011-08-11 17:00"), TimeSpan.FromMinutes(15)); // dt2 == {11/08/2011...