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Why are unnamed namespaces used and what are their benefits?

I just joined a new C++ software project and I'm trying to understand the design. The project makes frequent use of unnamed namespaces. For example, something like this may occur in a class definition file: ...
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What is the best Java email address validation method? [closed]

...verification email to the address if you want to ensure it's a real email, and that the owner wants it used on your site. EDIT: There was a bug where it was too restrictive on domain, causing it to not accept valid emails from new TLDs. This bug was resolved on 03/Jan/15 02:48 in commons-validator ...
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How do I move forward and backward between commits in git?

I am doing a git bisect and after arriving to the problematic commit, I am now trying to get a step forward/backward to make sure I am in the right one. ...
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input type=file show only button

... This answer is so simple and elegant and has worked for all browsers. – Mike.C.Ford Mar 19 '15 at 15:55 ...
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Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?

...oking for an answer to my distorted images" i got here for the same reason and your solution helped me (what was marked as the actual solution didn't help me at all) – Wagner Danda da Silva Filho Jun 29 '16 at 17:30 ...
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What is the equivalent of the C# 'var' keyword in Java?

...possible in Java (all Types had names, even if they were extremely verbose and unweildy). I do not know if this has changed in the mean time. var is not the same as dynamic. variables are still 100% statically typed. This will not compile: var myString = "foo"; myString = 3; var is also useful whe...
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How to tell if a string is not defined in a Bash shell script

...Autoconf, you'll find that they do not recommend combining terms with '-a' and do recommend using separate simple tests combined with &&. I've not encountered a system where there is a problem; that doesn't mean they didn't used to exist (but they are probably extremely rare these days, eve...
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Are global variables in PHP considered bad practice? If so, why?

...l way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do global $var; . ...
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How to convert a string into double and vice versa?

I want to convert a string into a double and after doing some math on it, convert it back to a string. 12 Answers ...
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Studies on optimal code width?

...racters. I tend to change it to 120 for no reason other than it was the standard at a company I was with a few years back, and no other company has told me to do it differently. ...