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What do linkers do?
I've always wondered. I know that compilers convert the code you write into binaries but what do linkers do? They've always been a mystery to me.
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Why aren't pointers initialized with NULL by default?
...ion point was he/she needed to perform some operation and then assign.
So now we have the situation that the compiler has added an extra instruction to the code that initializes the variable to NULL then later the developer code is added to do the correct initialization. Or under other conditions t...
How can I recover a lost commit in Git?
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Just to mention: if you know the branch name: git reflog <branchname> can be quite useful, since you see the changes of just one branch.
– Markus Schreiber
Jun 9 at 13:47
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What does the git index contain EXACTLY?
... entries.
With the new index.threads config setting, the index loading is now faster.
As a result (of using IEOT), commit 7bd9631 clean-up the read-cache.c load_cache_entries_threaded() function for Git 2.23 (Q3 2019).
See commit 8373037, commit d713e88, commit d92349d, commit 113c29a, commit c95f...
Set environment variables on Mac OS X Lion
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Also it's useful to know about ~/.bashrc. ~/.bashrc file runs every time you open a new non-login bash shell such as xterm / aterm, and ~/.bash_profile runs only with login shells i.e when you first log in into system.
– Dan...
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
...ated to be an in-memory key-value store(though it does much more than that now; its even referred to as a swiss army knife). Still, I've read/heard many people achieving good results with Redis for smaller sized projects, but haven't heard much about it in larger applications.
Here is an example of...
How do I create a list of random numbers without duplicates?
...f r not in answer:
answerSize += 1
answer.add(r)
# answer now contains 10 unique, random integers from 0.. 100
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How do I enable TODO/FIXME/XXX task tags in Eclipse?
In all my years of using Eclipse, I never knew until now that TODO / FIXME / XXX comment tags are supposed to appear in the task list. Apparently this is something that is disabled by default because I have been using those tags for as long as I've been using Eclipse and I have never seen one of the...
MySQL Workbench: How to keep the connection alive
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From the now unavailable internet archive:
Go to Edit -> Preferences -> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400.
Close and reopen MySQL Workbe...
How can I tell Rails to use RSpec instead of test-unit when creating a new Rails app?
...mmand line install rspec into your application:
$ rails g rspec:install
Now your rails application uses RSpec instead of test-unit.
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