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What does `kill -0 $pid` in a shell script do?
Basically, what signal does '0' represent, because here I see SIGNAL numbers starting from 1.
6 Answers
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How to modify list entries during for loop?
Now I know that it is not safe to modify the list during an iterative looping. However, suppose I have a list of strings, and I want to strip the strings themselves. Does replacement of mutable values count as modification?
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Can a C++ enum class have methods?
I have an enum class with two values, and I want to create a method which receives a value
and returns the other one. I also want to maintain type safety(that's why I use enum class instead of enums).
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Setup RSpec to test a gem (not Rails)
It is pretty easy with the added generator of rspec-rails to setup RSpec for testing a Rails application. But how about adding RSpec for testing a gem in development?
I am not using jeweler or such tools. I just used Bundler ( bundle gem my_gem ) to setup the structure for the new gem and edit the *...
How do I check for C++11 support?
Is there a way to detect at compile-time if the compiler supports certain features of C++11? For example, something like this:
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Is there a “standard” format for command line/shell help text?
...ngSteely Wing
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How do you split a list into evenly sized chunks?
I have a list of arbitrary length, and I need to split it up into equal size chunks and operate on it. There are some obvious ways to do this, like keeping a counter and two lists, and when the second list fills up, add it to the first list and empty the second list for the next round of data, but t...
No appenders could be found for logger(log4j)?
I have put log4j to my buildpath, but I get the following message when I run my application:
31 Answers
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What is the difference between the remap, noremap, nnoremap and vnoremap mapping commands in Vim?
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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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