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Why isn't vector a STL container?

Item 18 of Scott Meyers's book Effective STL: 50 Specific Ways to Improve Your Use of the Standard Template Library says to avoid vector <bool> as it's not an STL container and it doesn't really hold bool s. ...
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Giving a border to an HTML table row,

Is it possible to border a table row, <tr> in one go instead of giving a border to individual cells, <td> like, ...
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Full screen background image in an activity

I see many applications that use a full-screen image as background. This is an example: 13 Answers ...
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Understanding :source option of has_one/has_many through of Rails

Please help me in understanding the :source option of has_one/has_many :through association. The Rails API explanation makes very little sense to me. ...
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How does MongoDB sort records when no sort order is specified?

When we run a Mongo find() query without any sort order specified, what does the database internally use to sort the results? ...
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How to change field name in Django REST Framework

I am trying to change Model field name in DRF Serializer like alias in SQL. I have tried different methods but cannot succeed. ...
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Delete all files in directory (but not directory) - one liner solution

I want to delete all files inside ABC directory. 11 Answers 11 ...
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u'\ufeff' in Python string

I get an error with the following patter: 6 Answers 6 ...
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dynamic_cast and static_cast in C++

I am quite confused with the dynamic_cast keyword in C++. 10 Answers 10 ...
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Can a java file have more than one class?

What is the purpose of having more than one class in a Java file ? I am new to Java. 18 Answers ...