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Using member variable in lambda capture list inside a member function
The following code compiles with gcc 4.5.1 but not with VS2010 SP1:
4 Answers
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
I recently attended an interview where I was asked "write a program to find 100 largest numbers out of an array of 1 billion numbers."
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What is __pycache__?
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When you run a program in python, the interpreter compiles it to bytecode first (this is an oversimplification) and stores it in the __pycache__ folder. If you look in there you will find a bunch of files sharing the names of the .py files in your project's folder, only their extensions wi...
Rails raw SQL example
How can I convert this code to raw sql and use in rails? Because When I deploy this code in heroku,there is a request timeout error.I think this will be faster if I use raw sql.
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Rebasing and what does one mean by rebasing pushed commits
It is often said that, you should not rebase commits that you have already pushed. What could be meaning of that?
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Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
I'm getting this error when I try to upload using paperclip with my rails blogging app.
Not sure what it is referring to when it says "MissingRequiredValidatorError"
I thought that by updating post_params and giving it :image it would be fine, as both create and update use post_params
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How can I detect if a browser is blocking a popup?
Occasionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening.
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Storing C++ template function definitions in a .CPP file
...ave stored in a CPP file instead of inline in the header. I know this can be done as long as you know which template types will be used. For example:
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How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
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Tracking it down
At first I thought this was a coercion bug where null was getting coerced to "null" and a test of "null" == null was passing. It's not. I was close, but so very, very wrong. Sorry about that!
I've since done lots...