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Is optimisation level -O3 dangerous in g++?
I have heard from various sources (though mostly from a colleague of mine), that compiling 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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Is there a MySQL option/feature to track history of changes to records?
I've been asked if I can keep track of the changes to the records in a MySQL database. So when a field has been changed, the old vs new is available and the date this took place. Is there a feature or common technique to do this?
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difference between variables inside and outside of __init__()
Is there any difference at all between these classes besides the name?
10 Answers
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How to generate a random alpha-numeric string?
...ould be protected by other means if an attacker might be able to view and manipulate them, as happens in most web applications. There should be a separate authorization system that protects objects whose identifier can be guessed by an attacker without access permission.
Care must be also be taken ...
How do I obtain crash-data from my Android application?
...ther url. BugSense collects and analyzed all crash reports and gives you meaningful and visual reports. It's free and it's only 1 line of code in order to integrate.
Disclaimer: I am a co-founder
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How to exclude file only from root folder in Git
I am aware of using .gitignore file to exclude some files being added, but I have several config.php files in source tree and I need to exclude only one, located in the root while other keep under revision control.
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JavaScript Chart Library
...d recommend the later because it is well integrated with DOM, allowing to manipulate charts elements with the DOM, and most importantly setting DOM events. By contrast Canvas charting libraries must reinvent the DOM wheel to manage events. So unless you intend to build static graphs with no event ha...
Returning unique_ptr from functions
...swer has more to do with the move constructor, as described in Nikola Smiljanic's and Bartosz Milewski's answer.
– Don Hatch
Jul 22 '14 at 22:19
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Understanding “randomness”
I can't get my head around this, which is more random?
28 Answers
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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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