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How do I show the value of a #define at compile-time?
I am trying to figure out what version of Boost my code thinks it's using. I want to do something like this:
14 Answers
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To find whether a column exists in data frame or not
I have a data.frame with the name "abcframe"
4 Answers
4
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Correct way to load a Nib for a UIView subclass
I am aware this question has been asked before but the answers are contradicting and I am confused, so please don't flame me.
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What's better at freeing memory with PHP: unset() or $var = null
I realise the second one avoids the overhead of a function call ( update , is actually a language construct), but it would be interesting to know if one is better than the other. I have been using unset() for most of my coding, but I've recently looked through a few respectable classes found off t...
Purpose of Trigraph sequences in C++?
According to C++'03 Standard 2.3/1:
9 Answers
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Is there a “vim runtime log”?
Sometimes I try a customization/command in my vimrc. Everything seens to be correct, but it just doesn't work.
6 Answers
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What is the purpose of Flask's context stacks?
I've been using the request/application context for some time without fully understanding how it works or why it was designed the way it was. What is the purpose of the "stack" when it comes to the request or application context? Are these two separate stacks, or are they both part of one stack? Is ...
How do I replace a character at a particular index in JavaScript?
I have a string, let's say Hello world and I need to replace the char at index 3. How can I replace a char by specifying a index?
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What is the difference between String.slice and String.substring?
Does anyone know what the difference is between these two methods?
8 Answers
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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
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