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How can I find the last element in a List?
...his function starts at the end of the list so will be Big O(1) or constant time, despite the method normally being O(n).
//somewhere in your codebase, a strange delegate is defined
private static bool alwaysTrue(string in)
{
return true;
}
//Wherever you are working with the list
string myStri...
C++ auto keyword. Why is it magic?
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The use of auto to mean a deduced type was new with C++11.
At the same time, auto x = initializer deduces the type of x from the type of initializer the same way as template type deduction works for function templates. Consider a function template like this:
template<class T>
int whatever...
Expand a random range from 1–5 to 1–7
...re is no (exactly correct) solution which will run in a constant amount of time, since 1/7 is an infinite decimal in base 5. One simple solution would be to use rejection sampling, e.g.:
int i;
do
{
i = 5 * (rand5() - 1) + rand5(); // i is now uniformly random between 1 and 25
} while(i > 2...
Is there any significant difference between using if/else and switch-case in C#?
...for practical applications, is there any real world difference most of the time? I find switch statements in C# to be odd, their syntax isn't quite like anything else and I find that they make my code less readable, is it worth bothering to use switch statements, or should I just program with else i...
Retrieve only the queried element in an object array in MongoDB collection
...
Caution: This answer provides a solution that was relevant at that time, before the new features of MongoDB 2.2 and up were introduced. See the other answers if you are using a more recent version of MongoDB.
The field selector parameter is limited to complete properties. It cannot be used...
Moving from CVS to Git: $Id$ equivalent?
...2-12-g6c4ae7a..2.2-16-gc0cd61a
c0cd61a Dustin Sallings More tries to get a timeout.
8c489ff Dustin Sallings Made the timeout test run on every protocol on every bui
fb326d5 Dustin Sallings Added a test for bug 35.
fba04e9 Valeri Felberg Support passing an expiration date into CAS operations.
...
When splitting an empty string in Python, why does split() return an empty list while split('\n') re
...ther.
For the most part, Guido's API design choices have stood the test of time.
The current API is not without advantages. Consider strings such as:
ps_aux_header = "USER PID %CPU %MEM VSZ"
patient_header = "name,age,height,weight"
When asked to break these strings into fi...
Undo git reset --hard with uncommitted files in the staging area
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Isn't it possible to have a look at the object time stamps for the most recent objects that are later than your last commit? or am I missing something.
– Philip Oakley
Sep 12 '11 at 19:22
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Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
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Each and every time that I try to download from File Hippo I get redirected and the current version of Chrome gets installed. Frustrating.
– Jay Blanchard
Apr 28 '14 at 16:21
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How to share Eclipse configuration over different workspaces
...orkspaces:
Go to ${old_workspace}/.metadata/.plugins/org.eclipse.core.runtime/.settings
Copy everything under the above directory to ${new_workspace}/.metadata/.plugins/org.eclipse.core.runtime/.settings
This is going to make sure that the ${new_workspace} is having the same configuration as the...