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What does the thread_local <em>mem>ean in C++11?
I a<em>mem> confused with the description of thread_local in C++11. <em>Mem>y understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
Why should eval be avoided in Bash, and what should I use instead?
Ti<em>mem>e and ti<em>mem>e again, I see Bash answers on Stack Overflow using eval and the answers get bashed, pun intended, for the use of such an "evil" construct. Why is eval so evil?
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Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
... note that this behavior applies to any default value that is subsequently <em>mem>utated (e.g. hashes and strings), not just arrays.
TL;DR: Use Hash.new { |h, k| h[k] = [] } if you want the <em>mem>ost idio<em>mem>atic solution and don’t care why.
What doesn’t work
Why Hash.new([]) doesn’t work
Let’s look...
How to check if a specified key exists in a given S3 bucket using Java
...sts in a given bucket using Java. I looked at the API but there aren't any <em>mem>ethods that are useful. I tried to use getObject but it threw an exception.
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Why and How to avoid Event Handler <em>mem>e<em>mem>ory leaks?
I just ca<em>mem>e to realize, by reading so<em>mem>e questions and answers on StackOverflow, that adding event handlers using += in C# (or i guess, other .net languages) can cause co<em>mem><em>mem>on <em>mem>e<em>mem>ory leaks...
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Better explanation of when to use I<em>mem>ports/Depends
The " Writing R Extensions " <em>mem>anual provides the following guidance on when to use I<em>mem>ports or Depends:
4 Answers
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What colu<em>mem>n type/length should I use for storing a Bcrypt hashed password in a Database?
... would be the correct length? Are passwords hashed with BCrypt always of sa<em>mem>e length?
4 Answers
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REST, HTTP DELETE and para<em>mem>eters
<em>Mem>y scenario is that I'<em>mem> <em>mem>odelling the "Are you sure you want to delete that?" scenario. In so<em>mem>e cases, the state of the resource suggests that the requested delete <em>mem>ay be invalid. You can probably i<em>mem>agine so<em>mem>e scenarios yourself where confir<em>mem>ation of a delete is required
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Forking vs. Branching in GitHub
I'd like to know <em>mem>ore about the advantages and disadvantages of forking a github project vs. creating a branch of a github project.
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How to create a shared library with c<em>mem>ake?
I have written a library that I used to co<em>mem>pile using a self-written <em>Mem>akefile, but now I want to switch to c<em>mem>ake. The tree looks like this (I re<em>mem>oved all the irrelevant files):
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