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Passing a std::array of unknown size to a function

... Is there a simple way to make this work, as one would with plain C-style arrays? No. You really cannot do that unless you make your function a function template (or use another sort of container, like an std::vector, as sug...
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How do you connect to multiple MySQL databases on a single webpage?

...e same you need to pass true for the '$new_link' (fourth) parameter, otherwise the same connection is reused. For example: $dbh1 = mysql_connect($hostname, $username, $password); $dbh2 = mysql_connect($hostname, $username, $password, true); mysql_select_db('database1', $dbh1); mysql_select_db('d...
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Prevent BODY from scrolling when a modal is opened

...while the Modal (from http://twitter.github.com/bootstrap ) on my website is opened. 41 Answers ...
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How is set() implemented?

...e O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have? ...
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Is a DIV inside a TD a bad idea?

...ork, just something about them not being really compatible based on their display type. Can't find any evidence to back up my hunch, so I may be totally wrong. ...
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Generating Random Passwords

When a user on our site loses his password and heads off to the Lost Password page we need to give him a new temporary password. I don't really mind how random this is, or if it matches all the "needed" strong password rules, all I want to do is give them a password that they can change later. ...
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What is the reason behind cbegin/cend?

...'s no way to ensure that it does. Not without doing something silly like this: const std::vector<int> &vec_ref = vec; std::for_each(vec_ref.begin(), vec_ref.end(), SomeFunctor()); Now, we introduce cbegin/cend: std::for_each(vec.cbegin(), vec.cend(), SomeFunctor()); Now, we have synt...
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How to negate specific word in regex? [duplicate]

... A great way to do this is to use negative lookahead: ^(?!.*bar).*$ The negative lookahead construct is the pair of parentheses, with the opening parenthesis followed by a question mark and an exclamation point. Inside the lookahead [is any...
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How to model type-safe enum types?

..., Tue, Wed, Thu, Fri, Sat, Sun = Value } import WeekDay._ def isWorkingDay(d: WeekDay) = ! (d == Sat || d == Sun) WeekDay.values filter isWorkingDay foreach println } share | im...
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Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?

...ersions of Python installed, /usr/bin/env will ensure the interpreter used is the first one on your environment's $PATH. The alternative would be to hardcode something like #!/usr/bin/python; that's ok, but less flexible. In Unix, an executable file that's meant to be interpreted can indicate what ...