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Count character occurrences in a string in C++

How can I count the number of "_" in a string like "bla_bla_blabla_bla" ? 13 Answers ...
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How to convert a PIL Image into a numpy array?

Alright, I'm toying around with converting a PIL image object back and forth to a numpy array so I can do some faster pixel by pixel transformations than PIL's PixelAccess object would allow. I've figured out how to place the pixel information in a useful 3D numpy array by way of: ...
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Why should I use Google's CDN for jQuery?

This may be obvious to some, but I've been wondering: why should I depend on Google's server to host jQuery for my site? ...
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Evaluating a mathematical expression in a string

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How can I calculate an md5 checksum of a directory?

I need to calculate a summary md5 checksum for all files of a particular type ( *.py for example) placed under a directory and all sub-directories. ...
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I need to store postal codes in a database. How big should the column be?

I expect the column to be a VARCHAR2, in my Oracle Database. 8 Answers 8 ...
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How to specify an element after which to wrap in css flexbox? [duplicate]

I don't think this is part of the flexbox standard yet, but is there maybe a trick to suggest or force wrapping after a certain element? I'd like to respond to different page sizes and wrap a list differently without extra markup, so that rather than having (for example) orphaned menu items on the n...
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How do I query for all dates greater than a certain date in SQL Server?

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How do I make a transparent border with CSS?

I have an li styled as follows: 9 Answers 9 ...
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How to set a Fragment tag by code?

I haven't found something like setTag(String tagName) method in the Fragment class. The only way to set a Fragment tag that I have found is by doing a FragmentTransaction and passing a tag name as parameter. ...