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What are copy elision and return value optimization?
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Introduction
For a technical overview - skip to this answer.
For common cases where copy elision occurs - skip to this answer.
Copy elision is an optimization implemented by most compilers to prevent extra (potentially expensive) copies i...
When is memoization automatic in GHC Haskell?
I can't figure out why m1 is apparently memoized while m2 is not in the following:
4 Answers
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Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
I'm trying to configure a dark gray seperator color. Why does the following do nothing?
4 Answers
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How to pass boolean values to a PowerShell script from a command prompt
I have to invoke a PowerShell script from a batch file. One of the arguments to the script is a boolean value:
10 Answers
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Unmount the directory which is mounted by sshfs in Mac [closed]
I've installed OSXFUSE in my mac and used sshfs to mount a remote directory. Now I would like to unmount it, but can't find the way.
My OS is OSX 10.8 Mountain.
Can anyone help?
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MbUnit under Linux, used within an F# project?
I tried asking this on the gallio-users list, but the question failed to appear (Google Groups says the post was successful). I suppose the list might be moderated by someone who does not read his email very often :-) Seeing as SO has tags for both Gallio and MbUnit, I thought it was worth asking he...
Efficient way to apply multiple filters to pandas DataFrame or Series
I have a scenario where a user wants to apply several filters to a Pandas DataFrame or Series object. Essentially, I want to efficiently chain a bunch of filtering (comparison operations) together that are specified at run-time by the user.
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Create empty file using python [duplicate]
I'd like to create a file with path x using python. I've been using os.system(y) where y = 'touch %s' % (x) . I've looked for a non-directory version of os.mkdir , but I haven't been able to find anything. Is there a tool like this to create a file without opening it, or using system or popen/...
git add, commit and push commands in one?
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Building off of @Gavin's answer:
Making lazygit a function instead of an alias allows you to pass it an argument. I have added the following to my .bashrc (or .bash_profile if Mac):
function lazygit() {
git add .
git commit -...
Office在线预览及PDF在线预览的实现方式大集合 - 更多技术 - 清泛网 - 专注...
...览的实现方式大集合一、服务器先转换为PDF，再转换为SWF，最后通过网页加载Flash预览微软方：利用Office2007以上版本的一个PDF插件SaveAsPDFandXPS.exe可以导...一、服务器先转换为PDF，再转换为SWF，最后通过网页加载Flash预览
微软方...