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Declare a constant array

...hey are created at compile time, even when defined as locals in functions, and can only be numbers, characters (runes), strings or booleans. Because of the compile-time restriction, the expressions that define them must be constant expressions, evaluatable by the compiler. For instance, 1<<3 i...
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How to make Twitter Bootstrap tooltips have multiple lines?

...s tooltip plugin. How come multiline tooltips only work with <br> and not \n ? I prefer that there is not any HTML in my links’ title attributes. ...
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When can I use a forward declaration?

...ssuming the following forward declaration. class X; Here's what you can and cannot do. What you can do with an incomplete type: Declare a member to be a pointer or a reference to the incomplete type: class Foo { X *p; X &r; }; Declare functions or methods which accept/return inco...
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Eclipse debugger always blocks on ThreadPoolExecutor without any obvious exception, why?

... projects on Eclipse, it's a J2EE application, made with Spring, Hibernate and so on. I'm using Tomcat 7 for this (no particular reason, I don't exploit any new feature, I just wanted to try that). Every time I debug my application, it happens that Eclipse debugger pops out like it has reached a bre...
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What's the best way to refactor a method that has too many (6+) parameters?

... way would be to find ways to group the arguments together. This assumes, and really only works if, you would end up with multiple "groupings" of arguments. For instance, if you are passing the specification for a rectangle, you can pass x, y, width, and height or you could just pass a rectangle o...
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ASP.NET MVC Html.DropDownList SelectedValue

I have tried this is RC1 and then upgraded to RC2 which did not resolve the issue. 9 Answers ...
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When should you NOT use a Rules Engine? [closed]

...s when I see people using very large rule sets (e.g., on the order of thousands of rules in a single rule set). This often happens when the rules engine is a singleton sitting in the center of the enterprise in the hope that keeping rules DRY will make them accessible to many apps that require them...
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What is the copy-and-swap idiom?

What is this idiom and when should it be used? Which problems does it solve? Does the idiom change when C++11 is used? 5 An...
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Ignore .pyc files in git repository

...n does not contain a slash /, git treats it as a shell glob pattern and checks for a match against the pathname relative to the location of the .gitignore file (relative to the toplevel of the work tree if not from a .gitignore file). · Otherwise, git treats the pattern as...
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How do I import the Django DoesNotExist exception?

...Jun 19 '12 at 21:28 Daniel RosemanDaniel Roseman 521k5151 gold badges699699 silver badges746746 bronze badges ...