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Using OpenSSL what does “unable to write 'random state'” mean?
...rating a self-signed SSL certificate to protect my server's admin section, and I keep getting this message from OpenSSL:
8 ...
How do I convert an object to an array?
...your properties are declared private you should call this inside the class and return its results.
Be careful, for primitive data types like strings it will work great, but I don't know how it behaves with nested objects.
in your case you have to do something like;
<?php
print_r(get_objec...
Current location permission dialog disappears too quickly
My app takes the user's location, gets the co-ordinates , and provides a distance to or from their destination or origin. All these possible destinations are shown in a table view, so I'm getting the users co-ordinates at the same time as populating the table. The only thing is, the alert view that ...
How do I drop a MongoDB database from the command line?
...--eval "db.dropDatabase()"
More info on scripting the shell from the command line here: https://docs.mongodb.com/manual/tutorial/write-scripts-for-the-mongo-shell/#scripting
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How do I concatenate strings and variables in PowerShell?
...g2 + $string3). With these methods, you can have whitespace (spaces, tabs, and newlines) between the strings, but be sure that (1) each string has a comma/space after it on the same line, (2) you use the back-tick character ` at the end of any empty lines between your code, and (3) if you use -join,...
Printing Lists as Tabular Data
I am quite new to Python and I am now struggling with formatting my data nicely for printed output.
13 Answers
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conditional unique constraint
...onstraint like this. The difference is, you'll return false if Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS INT...
System.Net.Http: missing from namespace? (using .net 4.5)
TL; DR: I'm new to this language and have no idea what I'm doing
16 Answers
16
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Delete files older than 15 days using PowerShell
...re's some code that will first delete all of the files older than 15 days, and then recursively delete any empty directories that may have been left behind. My code also uses the -Force option to delete hidden and read-only files as well. Also, I chose to not use aliases as the OP is new to PowerShe...
Should I use char** argv or char* argv[]?
I'm just learning C and was wondering which one of these I should use in my main method. Is there any difference? Which one is more common?
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