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Best way to test if a generic type is a string? (C#)
...s empty string). When you call default(T) on an object, it returns null. For various reasons we need to ensure that if it is not a primitive type, then we will have a default instance of the type, not null. Here is attempt 1:
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Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2
...ed - e.g. 1e+00, 1e+01 along the x axis once plotted? Ideally, I want to force R to display the actual values which in this case would be 1,10 .
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What is the difference between a route and resource in New Router API?
...te Object. But its unclear when i think of default name mapping happening for paths as well.
1 Answer
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How do I revert master branch to a tag in git?
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You can do
git checkout master
git reset --hard tag_ABC
git push --force origin master
Please note that this will overwrite existing history in the upstream repo and may cause problems for other developers who have this repo checked out.
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Where is shared_ptr?
...ated. None of the examples I see show complete code to include the headers for shared_ptr (and working). Simply stating std , tr1 and <memory> is not helping at all! I have downloaded boosts and all but still it doesn't show up! Can someone help me by telling exactly where to find it?
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Why is a “GRANT USAGE” created the first time I grant a user privileges?
...night (using MySQL) when I noticed this. After granting a user a privilege for the first time, another grant is created that looks like
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What does Maven Update Project do in Eclipse?
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It syncs the Eclipse project settings with that of the pom. If you for example change important plugin settings, such as the output java version, you will find that Eclipse will ask you to update the project and afterwards the configured Java runtime in the project will have changed to refle...
Showing data values on stacked bar chart in ggplot2
...ng, which makes the default stack order match the legend."
Answer valid for older versions of ggplot:
Here is one approach, which calculates the midpoints of the bars.
library(ggplot2)
library(plyr)
# calculate midpoints of bars (simplified using comment by @DWin)
Data <- ddply(Data, .(Year...
Rolling back a remote Git repository
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You can use git revert <commit>… for all the n commits, and then push as usual, keeping history unchanged.
Or you can "roll back" with git reset --hard HEAD~n. If you are pushing in a public or shared repository, you may diverge and break others work based ...
In C++, if throw is an expression, what is its type?
I picked this up in one of my brief forays to reddit:
4 Answers
4
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