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visual studio not remembering open documents & startup project
...hing has changed about my VS solution, and I havent found a setting to fix it yet.
16 Answers
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Which kind of pointer do I use when?
...ded. I understand that C++11 now provides some of the types boost came up with, but not all of them.
4 Answers
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How do I rename an open file in Emacs?
Is there a way to rename an open file in Emacs? While I'm viewing it? Something like save-as, but the original one should go away.
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What is the difference between onPause() and onStop() of Android Activites?
... android doc here http://developer.android.com/reference/android/app/Activity.html ,
it said 'Activity comes into foreground' will call onPause() , and 'Activity is no longer visible' will call onStop() .
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Fastest way to determine if record exists
As the title suggests... I'm trying to figure out the fastest way with the least overhead to determine if a record exists in a table or not.
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Is there any use for unique_ptr with array?
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Some people do not have the luxury of using std::vector, even with allocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector...
Proper use of 'yield return'
...that continues to mystify me, and I've never been confident that I'm using it correctly.
16 Answers
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Why does my 'git branch' have no master?
I'm a git newbie and I keep reading about a "master" branch. Is "master" just a conventional name that people used or does it have special meaning like HEAD ?
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Set value for particular cell in pandas DataFrame using index
...0), is far and away faster than the options I've suggested below. However, it has been slated for deprecation.
Going forward, the recommended method is .iat/.at.
Why df.xs('C')['x']=10 does not work:
df.xs('C') by default, returns a new dataframe with a copy of the data, so
df.xs('C')['x']=10...
How to get the client IP address in PHP [duplicate]
...ER['HTTP_X_FORWARDED_FOR'], but this value is easily spoofed. For example, it can be set by someone without a proxy, or the IP can be an internal IP from the LAN behind the proxy.
This means that if you are going to save the $_SERVER['HTTP_X_FORWARDED_FOR'], make sure you also save the $_SERVER['RE...