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How to make clang compile to llvm IR
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@EliBendersky Do you know how to compile multiple .c and .h files into one human readable IR so that I can run the IR using 'lli theIrFile'? Thanks
– cache
Jul 20 '14 at 18:43
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How to get current path with query string using Capybara
...ests for a legacy application. Using current_path.should == is working for now (though I need to add a trailing forward-slash as a string). I'm thanking you in advance for code I'll likely need.
– Tass
Aug 19 '11 at 21:16
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What REALLY happens when you don't free after malloc?
This has been something that has bothered me for ages now.
17 Answers
17
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Split (explode) pandas dataframe string entry to separate rows
...1 var2 var3
0 [a, b, c] 1 XX
1 [d, e, f, x, y] 2 ZZ
Now we can do this:
In [181]: pd.DataFrame({
...: col:np.repeat(x[col].values, x[lst_col].str.len())
...: for col in x.columns.difference([lst_col])
...: }).assign(**{lst_col:np.concatenate(x[lst_col]....
Using arrays or std::vectors in C++, what's the performance gap?
...e they suggest not to use C++ arrays on new projects anymore. As far as I know Stroustroup himself suggests not to use arrays. But are there significant performance differences?
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Storyboard - refer to ViewController in AppDelegate
...roject and specify the name of the new class in the IB identity inspector. Now how am I going to refer to this ViewController programmatically from the AppDelegate? I've made a variable with the relevant class and turned it into an IBOutlet property, but I don't see any way of being able to refer to...
How can I capitalize the first letter of each word in a string?
...urn re.sub("(^|\s)(\S)", lambda m: m.group(1) + m.group(2).upper(), s)
Now, these are some other answers that were posted, and inputs for which they don't work as expected if we are using the definition of a word being the start of the sentence or anything after a blank space:
return s.title(...
Why does Python pep-8 strongly recommend spaces over tabs for indentation?
...ogrammers choose to use spaces before PEP-8? That's what I really want to know. The advantages of tabs seem obvious to me, but not spaces.
– einnocent
Mar 1 '14 at 0:40
12
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The SQL OVER() clause - when and why is it useful?
...t
GROUP BY [Partition]
) agg ON orig.[Partition] = agg.[Partition]
Now look how you can do the same with a windowed aggregate:
SELECT
[Partition],
Value,
Value * 100.0 / SUM(Value) OVER (PARTITION BY [Partition]) AS ValuePercent
FROM OriginalRowset orig
Much easier and cleaner, isn'...
Does “git fetch --tags” include “git fetch”?
..., it is not because --tags was set. As such, this special error message is now irrelevant.
To prevent confusion, remove this error message.
With Git 2.11+ (Q4 2016) git fetch is quicker.
See commit 5827a03 (13 Oct 2016) by Jeff King (peff).
(Merged by Junio C Hamano -- gitster -- in commit...