Convert int to binary string in Python
Python’s string format method can take a format spec. >>> “{0:b}”.format(37) ‘100101’ Format spec docs for Python 2 Format spec docs for Python 3
binary
What does \x00 mean in binary file?
An ASCII file might be read or interpreted as having NULL-terminated strings, carriage returns & line-feeds, or other control characters, that are intended to be read and acted on. For example, a text reader might look for a line of text, where a line is “however many characters you see before you get to a … Read more
Can someone explain to me the pack() function in PHP?
Those represent how you want the data you are packing to be represented in binary format: so $bin = pack(“v”, 1); => 0000000000000001 (16bit) where $bin = pack(“V”, 1) => 00000000000000000000000000000001 (32 bit) It tells pack how you want the data represented in the binary data. The code below will demonstrate this. Note that you … Read more
How many values can be represented with n bits?
29 = 512 values, because that’s how many combinations of zeroes and ones you can have. What those values represent however will depend on the system you are using. If it’s an unsigned integer, you will have: 000000000 = 0 (min) 000000001 = 1 … 111111110 = 510 111111111 = 511 (max) In two’s complement, … Read more
Convert from BitArray to Byte
This should work: byte ConvertToByte(BitArray bits) { if (bits.Count != 8) { throw new ArgumentException(“bits”); } byte[] bytes = new byte[1]; bits.CopyTo(bytes, 0); return bytes[0]; }
How to explicity tell SVN to treat a file as text, not binary
Setting the svn:mime-type property to just “text/plain” helps: svn propset svn:mime-type text/plain build.xml svn commit build.xml Also, you can force Subversion to treat a file as text when blaming: svn blame file/to/blame –force
Do ghc-compiled binaries require GHC or are they self-contained?
GHC does produce stand-alone binaries that do not require GHC itself to be installed, however they do link against some dynamic libraries, most notably libgmp. The remaining libraries are commonly found out of the box on most Linux systems. I believe the situation is similar on Windows. You can check which dynamic libraries you depend … Read more
Convert an integer to a binary string with leading zeros
11 is binary representation of 3. The binary representation of this value is 2 bits. 3 = 20 * 1 + 21 * 1 You can use String.PadLeft(Int, Char) method to add these zeros. // convert number 3 to binary string. // And pad ‘0’ to the left until string will be not less then … Read more
Bash shell Decimal to Binary base 2 conversion
You can use bc as: echo “obase=2;$ip1” | bc See it
Is there a way to read binary data in JavaScript?
You can use parseInt: var bin = parseInt(‘10101010’, 2); The second argument (the radix) is the base of the input.