大约有 40,800 项符合查询结果(耗时:0.0372秒) [XML]
Passing a std::array of unknown size to a function
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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...
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', $dbh1);
mysql_select_db('d...
Prevent BODY from scrolling when a modal is opened
...while the Modal (from http://twitter.github.com/bootstrap ) on my website is opened.
41 Answers
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How is set() implemented?
...e O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have?
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Is a DIV inside a TD a bad idea?
...ork, just something about them not being really compatible based on their display type. Can't find any evidence to back up my hunch, so I may be totally wrong.
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Generating Random Passwords
When a user on our site loses his password and heads off to the Lost Password page we need to give him a new temporary password. I don't really mind how random this is, or if it matches all the "needed" strong password rules, all I want to do is give them a password that they can change later.
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What is the reason behind cbegin/cend?
...'s no way to ensure that it does. Not without doing something silly like this:
const std::vector<int> &vec_ref = vec;
std::for_each(vec_ref.begin(), vec_ref.end(), SomeFunctor());
Now, we introduce cbegin/cend:
std::for_each(vec.cbegin(), vec.cend(), SomeFunctor());
Now, we have synt...
How to negate specific word in regex? [duplicate]
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A great way to do this is to use negative lookahead:
^(?!.*bar).*$
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...
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
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im...
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 ...
