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Why is pow(a, d, n) so much faster than a**d % n?
...hat is what pow does. The ** operator can't do this because it can't "see into the future" to know that you are going to immediately take the modulus.
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How to get the IP address of the server on which my C# application is running on?
...would change would be to change this:
if (ip.AddressFamily.ToString() == "InterNetwork")
to this:
if (ip.AddressFamily == AddressFamily.InterNetwork)
There is no need to ToString an enumeration for comparison.
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Files showing as modified directly after a Git clone
...d because you have core.autocrlf set to either true or input, Git wants to convert the line-endings to LF, so git status shows that every file is changed.
If this is a repository that you only want to access, but have no involvement with, you can run the following command to merely hide the issue w...
How to set auto increment primary key in PostgreSQL?
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and if you want to reference it from another table, use integer, or bigint
– Ward
May 18 '14 at 21:38
2
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Xcode Debugger: view value of variable
...f NSDictionary variable in Xcode debugger?
I also use
po variableName
print variableName
in Console.
In your case it is possible to execute
print [myData objectAtIndex:indexPath.row]
or
po [myData objectAtIndex:indexPath.row]
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How do I specify the Linq OrderBy argument dynamically?
...var param = expression.Parameters.First().Name;
str = str.Replace("Convert(", "(").Replace(param + ".", "");
return str + (isDesc ? " descending" : "");
}
}
3) Write your switch for selecting of Lambda function
public static class SortHelper
{
public static Expression<F...
What's the best way to retry an AJAX request on failure using jQuery?
...{func(param)}. That way, you can directly pass the parameter along without converting it to a string and back, which can fail very easily!
– fabspro
Sep 28 '13 at 15:36
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How do I concatenate const/literal strings in C?
...r "strings".
You can use the strcat function, which appends the string pointed to by src to the end of the string pointed to by dest:
char *strcat(char *dest, const char *src);
Here is an example from cplusplus.com:
char str[80];
strcpy(str, "these ");
strcat(str, "strings ");
strcat(str, "are...
Rename Pandas DataFrame Index
...s and index are the same type of object (Index or MultiIndex), and you can interchange the two via transpose.
This is a little bit confusing since the index names have a similar meaning to columns, so here are some more examples:
In [1]: df = pd.DataFrame([[1, 2, 3], [4, 5 ,6]], columns=list('ABC'...
How to Implement Custom Table View Section Headers and Footers with Storyboard
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@Foriger - Not at this point. It's an odd omission in storyboard table views, but it is what it is. Use that kludgy hack with prototype cells if it you want, but personally, I just put up with the annoyance of the NIBs for the header/footer views.
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