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Django admin: how to sort by one of the custom list_display fields that has no database field
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Match linebreaks - \n or \r\n?
...s to Unix style (\n).
Also, NEL (\u0085) is something different entirely: https://en.wikipedia.org/wiki/Newline#Unicode
(\r?\n) will cover Unix and Windows. You'll need something more complex, like (\r\n|\r|\n), if you want to match old Mac too.
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std::wstring VS std::string
... glyphs (Klingon? Elvish?), while UTF-8 will spend from 1 to 4 bytes.
See http://en.wikipedia.org/wiki/UTF-8#Compared_to_UTF-16 for more info.
Conclusion
When I should use std::wstring over std::string?
On Linux? Almost never (§).
On Windows? Almost always (§).
On cross-platform code? Depends...
Swapping two variable value without using third variable
... 0011
//So *x is 0011
Should this be used?
In general cases, no. The compiler will optimize away the temporary variable and given that swapping is a common procedure it should output the optimum machine code for your platform.
Take for example this quick test program written in C.
#include &...
What does LINQ return when the results are empty
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Django Admin - Disable the 'Add' action for a specific model
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Android: How can I validate EditText input?
... edited May 23 '17 at 11:47
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answered May 18 '10 at 9:28
NiksNiks
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MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
I created a dump with mongodump on computer A (ubuntu 12.04 server). I moved it to computer B (ubuntu 12.04 server) and typed:
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Is the list of Python reserved words and builtins available in a library?
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How do I display the current value of an Android Preference in the Preference summary?
This must come up very often.
34 Answers
34
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