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-3
votes
2answers
126 views

Should I learn octal numbering? [closed]

I'm reading the K&R book on the C programming language. I found a passage on bitwise operators extremely hard to understand because it uses octal numbering examples (and because bitwise isn't ...
19
votes
3answers
1k views

Why do so many languages treat numbers starting with 0 as octal?

I've read Where are octals useful? and it seems like octals are something that were once upon a time useful. Many languages treat numbers preceding with a 0 as octal, so the literal 010 is actually ...
2
votes
2answers
230 views

Which numeral systems are useful in computer science?

I am wondering which numeral system different programmers are using, or would use if their language has support for them. As an example, in C++ we can use: Octal by prefixing with 0 (e.g. 0377) ...
21
votes
10answers
2k views

Where are octals useful?

I just banged my head against the table for some 20 minutes looking at a totally weird bug in PHP, and then I realized there's octal. The <%(*&#> octal. In short, I padded some literals with ...