You have Integer#to_s(base) and String#to_i(base) available to you. Integer#to_s(base) converts a decimal number to a string representing the number in the base specified: 9.to_s(2) #=> “1001” while the reverse is obtained with String#to_i(base): “1001”.to_i(2) #=> 9
It simply means that when git inspects the actual content of the file (it doesn’t know that any given extension is not a binary file – you can use the attributes file if you want to tell it explicitly – see the man pages). Having inspected the file’s contents it has seen stuff that isn’t … Read more
Instances of Buffer are also instances of Uint8Array in node.js 4.x and higher. Thus, the most efficient solution is to access the buf.buffer property directly, as per https://stackoverflow.com/a/31394257/1375574. The Buffer constructor also takes an ArrayBufferView argument if you need to go the other direction. Note that this will not create a copy, which means that … Read more
Integer.toBinaryString(int i)
Use the format() function: >>> format(14, ‘#010b’) ‘0b00001110’ The format() function simply formats the input following the Format Specification mini language. The # makes the format include the 0b prefix, and the 010 size formats the output to fit in 10 characters width, with 0 padding; 2 characters for the 0b prefix, the other 8 … Read more
Update C# 7.0 now has binary literals, which is awesome. [Flags] enum Days { None = 0, Sunday = 0b0000001, Monday = 0b0000010, // 2 Tuesday = 0b0000100, // 4 Wednesday = 0b0001000, // 8 Thursday = 0b0010000, // 16 Friday = 0b0100000, // etc. Saturday = 0b1000000, Weekend = Saturday | Sunday, Weekdays = … Read more
If you are using GCC then you can use a GCC extension (which is included in the C++14 standard) for this: int x = 0b00010000;
It’s done so that addition doesn’t need to have any special logic for dealing with negative numbers. Check out the article on Wikipedia. Say you have two numbers, 2 and -1. In your “intuitive” way of representing numbers, they would be 0010 and 1001, respectively (I’m sticking to 4 bits for size). In the two’s … Read more
>>> ‘{0:08b}’.format(6) ‘00000110’ Just to explain the parts of the formatting string: {} places a variable into a string 0 takes the variable at argument position 0 : adds formatting options for this variable (otherwise it would represent decimal 6) 08 formats the number to eight digits zero-padded on the left b converts the number … Read more
The standard unix diff will show if the files are the same or not: [me@host ~]$ diff 1.bin 2.bin Binary files 1.bin and 2.bin differ If there is no output from the command, it means that the files have no differences.