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Choice between vector::resize() and vector::reserve()
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The two functions do vastly different things!
The resize() method (and passing argument to constructor is equivalent to that) will insert or delete appropriate number of elements to the vector to make it given size (it has optional second argument to specify their value). It will affect the ...
Can comments be used in JSON?
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No.
The JSON should all be data, and if you include a comment, then it will be data too.
You could have a designated data element called "_comment" (or something) that would be ignored by apps that use the JSON data.
You would probably be better having the...
Can't seem to discard changes in Git
After seeing the following from the command line:
19 Answers
19
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git - pulling from specific branch
I have cloned a git repository to my dev server and then switched to the dev branch but now I can't do a git pull to update the branch.
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What is an unsigned char?
...ich gives you at least the 0 to 255 range.
"At least", because the C++ standard only gives the minimum range of values that each numeric type is required to cover. sizeof (char) is required to be 1 (i.e. one byte), but a byte could in theory be for example 32 bits. sizeof would still be report its...
How to change an Android app's name?
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Yes you can. By changing the android:label field in your application node in AndroidManifest.xml.
Note: If you have added a Splash Screen and added
<intent-filter>
<action android:name="android.intent.action.MAIN" />
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How to generate a range of numbers between two numbers?
I have two numbers as input from the user, like for example 1000 and 1050 .
28 Answers
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What is the difference between encode/decode?
I've never been sure that I understand the difference between str/unicode decode and encode.
6 Answers
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How do I get the current username in Windows PowerShell?
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A quick and dirty alternative would be $env:username to retrieve the user name from the corresponding environment variable.
– guillermooo
Jan 21 '10 at 0:25
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Difference between validate(), revalidate() and invalidate() in Swing GUI
...idate() marks the container as invalid. Means the content is somehow wrong and must be re-laid out. But it's just a kind of mark/flag. It's possible that multiple invalid containers must be refreshed later.
validate() performs relayout. It means invalid content is asked for all the sizes and all th...