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Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate
I've seen mixed versions of this in a lot of code. (This applies to C and C++, by the way.) People seem to declare pointers in one of two ways, and I have no idea which one is correct, of if it even matters.
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Converting XML to JSON using Python?
I've seen a fair share of ungainly XML->JSON code on the web, and having interacted with Stack's users for a bit, I'm convinced that this crowd can help more than the first few pages of Google results can.
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Passing a single item as IEnumerable
...ss in a list or an array, then an unscrupulous piece of code could cast it and change the contents, leading to odd behaviour in some situations. You could use a read-only collection, but that's likely to involve even more wrapping. I think your solution is as neat as it gets.
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Is there a common Java utility to break a list into batches?
...s [[a, b, c], [d, e]] -- an outer list containing two inner lists of three and two elements, all in the original order.
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Batch files: How to read a file?
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You can use the for command:
FOR /F "eol=; tokens=2,3* delims=, " %i in (myfile.txt) do @echo %i %j %k
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for /?
at the command prompt. Also, you can parse ini files!
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Using module 'subprocess' with timeout
Here's the Python code to run an arbitrary command returning its stdout data, or raise an exception on non-zero exit codes:
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VideoRecorder 拓展：前台预览录制 + 后台无预览录制，支持分辨率、码率设...
...频录制扩展打磨：反复优化质量控制功能，必须狠狠表扬清泛！
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在这里特意开帖，真诚、认真地表扬一位超靠谱、超有耐心的伙伴 ——清泛！
最初对接BackgroundVideoRecorder/VideoRecorder 视频录制扩展控件时，清泛就展...
Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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What is a segmentation fault?
What is a segmentation fault? Is it different in C and C++? How are segmentation faults and dangling pointers related?
14 A...
Dynamically select data frame columns using $ and a character value
I have a vector of different column names and I want to be able to loop over each of them to extract that column from a data.frame. For example, consider the data set mtcars and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic s...