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Convert pem key to ssh-rsa format
I have a certificate in der format, from it with this command I generate a public key:
8 Answers
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Get free disk space
...me)
{
foreach (DriveInfo drive in DriveInfo.GetDrives())
{
if (drive.IsReady && drive.Name == driveName)
{
return drive.TotalFreeSpace;
}
}
return -1;
}
good luck!
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ios app maximum memory budget
...want to limit them with a budget. I guess we'll just have to test on many different devices in different settings to find a reasonable maximum memory footprint to use.
– frilla
May 5 '11 at 0:42
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Are there benefits of passing by pointer over passing by reference in C++?
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A pointer can receive a NULL parameter, a reference parameter can not. If there's ever a chance that you could want to pass "no object", then use a pointer instead of a reference.
Also, passing by pointer allows you to explicitly see at the call site whether the object is passed by value or by ...
Breaking a list into multiple columns in Latex
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If you don't like the numbers that enumerate automatically adds, try itemize instead of enumerate.
– Tim Stewart
Sep 6 '10 at 19:52
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How can I convert ArrayList to ArrayList?
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If you use String.valueOf(object), you won't have to do the object != null ? object.toString() : null thing
– user219882
Nov 28 '12 at 10:24
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Get the first element of an array
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Original answer, but costly (O(n)):
array_shift(array_values($array));
In O(1):
array_pop(array_reverse($array));
Other use cases, etc...
If modifying (in the sense of resetting array pointers) of $array is not a problem, you might use:
reset($array);
This sho...
Rails migration for has_and_belongs_to_many join table
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@hoffmanc It will generate an empty migration file if you do not specify any fields. You must specify the fields if you want Rails to automatically add them to the migration file.
– Andrew
Jan 21 '15 at 19:44
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Create a .csv file with values from a Python list
... Writerows seems to break up each element in the list into columns if each element is a list as well. This is pretty handy for outputting tables.
– whatnick
Oct 7 '14 at 5:22
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Breadth First Vs Depth First
When Traversing a Tree/Graph what is the difference between Breadth First and Depth first? Any coding or pseudocode examples would be great.
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