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unsigned int vs. size_t
...other great article explaining both size_t and ptrdiff_t: viva64.com/en/a/0050
– Ihor Kaharlichenko
Jun 15 '11 at 13:58
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Does a break statement break from a switch/select?
I know that switch / select statements break automatically after every case. I am wondering, in the following code:
6 Ans...
How to copy data to clipboard in C#
...xception see "Current thread must be set to single thread apartment (STA)" error in copy string to clipboard
This question/answer covers regular .NET, for .NET Core see - .Net Core - copy to clipboard?
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Why does Math.round(0.49999999999999994) return 1?
...re are no doubt many other floating point values affected by this rounding error.
– Michaël Roy
Dec 10 '17 at 5:49
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Git keeps prompting me for a password
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Note, I got the error 'credential-osxkeychain' is not a git command. as I didn't have the credential helper installed. I followed the instructions here to install it: help.github.com/articles/set-up-git#password-caching
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rbenv not changing ruby version
I installed rbenv according to the github directions. I am running OSX but I have tried this on a Ubuntu 12.04 VM and got the same results. The following is what i get in my terminal when I try to change ruby versions:
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rsync: how can I configure it to create target directory on server?
... This doesn't seem to be working on newer rsync protocols, I get an error similar to following when using && or ; in --rsync-path invalid characters in scp command! here:&& /usr/bin/rsync
– ghitesh
Jun 23 '16 at 4:31
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How do I check if an element is really visible with JavaScript? [duplicate]
In JavaScript, how would you check if an element is actually visible?
16 Answers
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Covariance and contravariance real world example
...iantly as a mammal hat…
IHat<Mammal> mHat = rHat; // Compiler error
// …because…
mHat.hide(new Dolphin()); // Hide a dolphin in a rabbit hat??
// It also cannot be treated contravariantly as a cottontail hat…
IHat<CottonTail> cHat = rHat; // Compiler error
// …becau...
What is the difference between gsub and sub methods for Ruby Strings
...iced before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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