Digests » 332
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this week's favorite
curl is a command line tool for making HTTP requests. I like it because it’s an easy way to test that servers or APIs are doing what I think, but it’s a little confusing at first!
When we talk about COBOL the first question on everyone’s mind is always Why are we still using it in so many critical places? Banks are still running COBOL, close to 7% of the GDP is dependent on COBOL in the form of payments from the Centers for Medicare & Medicaid Services, The IRS famously still uses COBOL, airlines still use COBOL (Adam Fletcher dropped my favorite fun fact on this topic in his Systems We Love talk: the reservation number on your ticket used to be just a pointer), lots of critical infrastructure both in the private and public sector still runs on COBOL.
Welcome to yet another installment of my series on interview questions I used to ask at Google before they were leaked and banned. I’ve since left being a software engineer at Google and moved on to being an engineering manager at Reddit, but I’ve still got a few great questions to share. So far I’ve covered dynamic programming, matrix exponentiation, and query synonymity, and this time around I’ve got a brand new question for us to dig into.
Learn how Linux/FFmpeg C partial codebase is organized to be extensible and act as if it were meant to have “polymorphism”. Specifically, we’re going to briefly explore how Linux concept of everything is a file works at the source code level as well as how FFmpeg can add support fast and easy for new formats and codecs.
Before you rage quit or call in your DBA, check these things aren’t slowing down your SQL query. A few tweaks could be all you need to get things working.