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Releasing memory in Python
I have a few related questions regarding memory usage in the following example.
4 Answers
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In plain English, what does “git reset” do?
I have seen interesting posts explaining subtleties about git reset .
7 Answers
7
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How do I use vimdiff to resolve a git merge conflict?
I just merged a branch into my master in git and I got Automatic merge failed; fix conflicts and then commit the result. Now I ran git mergetool and vimdiff opened with the image below. I don't know how to use vimdiff. What does each panel here mean and how should I proceed to fix the merge conf...
Why is volatile not considered useful in multithreaded C or C++ programming?
As demonstrated in this answer I recently posted, I seem to be confused about the utility (or lack thereof) of volatile in multi-threaded programming contexts.
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Where do you store your salt strings?
I've always used a proper per-entry salt string when hashing passwords for database storage. For my needs, storing the salt in the DB next to the hashed password has always worked fine.
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社交应用组件 · App Inventor 2 中文网
...体
设置联系人选择框的字体，目前支持的字体有：default, serif, sans serif, 和 monospace。
要使用自定义字体，请将 .ttf 字体文件上传并选中它。
高度
设置联系人选择框的垂直高度，以像素px为单位。
高度百分比
设...
Reset/remove CSS styles for element only
I'm sure this must have been mentioned/asked before but have been searching for an age with no luck, my terminology must be wrong!
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Class does not implement its superclass's required members
So I updated to Xcode 6 beta 5 today and noticed I received errors in nearly all of my subclasses of Apple's classes.
4 Ans...
std::wstring VS std::string
I am not able to understand the differences between std::string and std::wstring . I know wstring supports wide characters such as Unicode characters. I have got the following questions:
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
Every time I mention slow performance of C++ standard library iostreams, I get met with a wave of disbelief. Yet I have profiler results showing large amounts of time spent in iostream library code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer...