My preferred way is: $x_num = oct(“0b” . $x_bin); Quoting from man perlfunc: oct EXPR oct Interprets EXPR as an octal string and returns the corresponding value. (If EXPR happens to start off with “0x”, interprets it as a hex string. If EXPR starts off with “0b”, it is interpreted as a binary string. Leading … Read more
Having been through this a couple of times with commercial products, I think the very best answer is to use the native installer for each supported platform. Anything else produces an unpleasant experience for the end-user, and in practice you have to test on every platform you want to support anyway, so it’s not really … Read more
The –binary option is used when you create the patch file, not when you apply it. That means, instead of your current git diff branch1 branch2 > patch-file, you have to do this instead: git diff branch1 branch2 –binary > patch-file. And, then, apply the patch with git apply patch-file in the same way as … Read more
You could actually load the file into a string and search that string for the byte sequence 0xffc0 using the str.find() method. It works for any byte sequence. The code to do this depends on a couple things. If you open the file in binary mode and you’re using Python 3 (both of which are … Read more
I think you use Python 3 . 1.Opening a file in binary mode is simple but subtle. The only difference from opening it in text mode is that the mode parameter contains a ‘b’ character. …….. 4.Here’s one difference, though: a binary stream object has no encoding attribute. That makes sense, right? You’re reading (or … Read more
The precision is fixed, which is exactly 53 binary digits for double-precision (or 52 if we exclude the implicit leading 1). This comes out to about 15 decimal digits. The OP asked me to elaborate on why having exactly 53 binary digits means “about” 15 decimal digits. To understand this intuitively, let’s consider a less-precise … Read more
You can use int and set the base to 2 (for binary): >>> binary = raw_input(‘enter a number: ‘) enter a number: 11001 >>> int(binary, 2) 25 >>> However, if you cannot use int like that, then you could always do this: binary = raw_input(‘enter a number: ‘) decimal = 0 for digit in binary: … Read more
Two’s complement came about when someone realized that ‘going negative’ by subtracting 1 from 0 and letting the bits rollunder actually made signed arithmetic simpler because no special checks have to be done to check if the number is negative or not. Other solutions give you a discontinuity between -1 and 0. The only oddity … Read more
By default, jQuery serializes the data (passed in data property) – and it means 0xFD008001 number gets passed to the server as ‘4244668417’ string (10 bytes, not 4), that’s why the server treats it not as expected. It’s necessary to prevent such behaviour by setting $.ajax property processData to false: By default, data passed in … Read more
You Just Can’t Beat the Binary Binary protocols will always be more space efficient than text protocols. Even as internet speeds drastically increase, so does the amount and complexity of information we wish to convey. The text protocols you reference are outstanding in terms of standardization, flexibility and ease of use. However, there will always … Read more