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When to use ref and when it is not necessary in C#
...or C++. Changes to the value of the parameter itself won't be seen by the caller, but changes in the object which the reference points to will be seen.
When a parameter (of any kind) is passed by reference, that means that any changes to the parameter are seen by the caller - changes to the paramet...
Best way to test exceptions with Assert to ensure they will be thrown
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Although your code is functionally sound I do not recommend using the ExpectedException attribute (since it's too constraining and error-prone) or to write a try/catch block in each test (since it's too complicated and error-prone). Use a well-designed as...
How to monitor network calls made from iOS Simulator
I am trying to monitor calls from an app to my server just like Firebug does.
I could not find a way to see that in iOS Simulator or in xCode.
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When to use references vs. pointers
...going in undefined-behaviour-land;
the reference attribute version doesn't allow (without easy to spot tricks) the problem with 1.
the reference attribute version is simpler to understand for the user: you have to provide a valid object, not something that could be null.
If the behaviour of the fun...
How to Set AllowOverride all
I want to set the AllowOverride all But I don't know how to do it. I have found the following code by searching the google and pasted it in .htaccess :
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Is there a performance difference between i++ and ++i in C?
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Executive summary: No.
i++ could potentially be slower than ++i, since the old value of i
might need to be saved for later use, but in practice all modern
compilers will optimize this away.
We can demonstrate this by looking at the code for this function,
both wit...
Check status of one port on remote host [closed]
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This is the easiest method if telnet is installed on the Windows device
– shonky linux user
Apr 29 '13 at 1:12
30
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Running Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on the same machine
..., but you'll thank yourself in the long run. In my experience, you can't really get them cleanly installed side by side and unless they are standalone installs you can't really verify that it is 100% true-to-browser rendering.
Update: Looks like one of the better ways to accomplish this (if running...
How to check if a string is a valid JSON string in JavaScript without using Try/Catch
...st check a JSON string using a regexp, and it will work in most cases, not all cases.
Have a look around the line 450 in https://github.com/douglascrockford/JSON-js/blob/master/json2.js
There is a regexp that check for a valid JSON, something like:
if (/^[\],:{}\s]*$/.test(text.replace(/\\["\\\/b...
postgres: upgrade a user to be a superuser?
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@masterweily You can do \du to list all users/roles.
– XåpplI'-I0llwlg'I -
Apr 6 '14 at 23:38
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