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Is optimisation level -O3 dangerous in g++?
...mpiling with an optimisation level of -O3 in g++ is somehow 'dangerous', and should be avoided in general unless proven to be necessary.
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uppercase first character in a variable with bash
...t Bash), the overhead of using a here-doc/string (temporary file creation) and it uses two substitutions compared to the best scored answer's one. If you absolutely must write legacy code, consider using a function instead of a subshell.
– Steve
Apr 13 '16 at 2...
What should I use Android AccountManager for?
I've seen AccountManager in the Android SDK and that it is used for storing account information. Thus, I cannot find any general discussion of what it is intended for. Does anyone know of any helpful discussions of what the intention behind AccountManager is and what it buys you? Any opinions of wha...
How different is Objective-C from C++? [closed]
What are the main differences between Objective-C and C++ in terms of the syntax, features, paradigms, frameworks and libraries?
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What is token-based authentication?
I want to understand what token-based authentication means. I searched the internet but couldn't find anything understandable.
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Difference between abstract class and interface in Python
What is the difference between abstract class and interface in Python?
8 Answers
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How to retrieve a single file from a specific revision in Git?
I have a Git repository and I'd like to see how some files looked a few months ago. I found the revision at that date; it's 27cf8e84bb88e24ae4b4b3df2b77aab91a3735d8 . I need to see what one file looks like, and also save it as a ("new") file.
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month name to month number and vice versa in python
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Hmmm, I did this and it worked... d = dict((v,k) for k,v in enumerate(calendar.month_abbr))
– Mark_Masoul
Aug 5 '10 at 18:58
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How do I get the last character of a string?
...t as a string, not a character, but you already know how to do the latter, and I'm not clear on what you're after.
– jcomeau_ictx
Mar 2 '11 at 5:46
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Difference between Python's Generators and Iterators
What is the difference between iterators and generators? Some examples for when you would use each case would be helpful.
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