I am looking for an efficient (optionally standard, elegant and easy to implement) solution to multiply relatively large numbers, and store the result into one or several integers : Let say I have ...

I have a problem while using bitwise in javascript. I don t know if I m going about this the wrong way. But here goes. I have 4 main categories. With id 1,2,4,8. A item in my object has a property ...

I m new to working with bits. I m trying to work with an existing protocol, which can send three different types of messages. Type 1 is a 16-bit structure: struct digital { unsigned int type:2; ...

i try to store a string into an integer as follows: i read the characters of the string and every 4 characters i do this: val = (int) ch << 24 | (int) ch << 16 | (int) ch << 8 | (...

I need to perform a circular left shift of a 64-bit integer in JavaScript. However: JavaScript numbers are doubles JavaScript converts them to 32-bit signed ints when you start with the << and ...

Take this scenario: You have a few flag enumerations in C# tied to (and in fact generated from) Enum-ish tables in SQL Server. Say you are a distributor, and you allow your resellers to specify what ...

I m looking at an algorithm I m trying to optimize, and it s basically a lot of bit twiddling, followed by some additions in a tight feedback. If I could use carry-save addition for the adders, it ...

I need to port some JS code which involves Math.random()*2147483648)^(new Date).getTime(). While it looks like for smaller numbers, the python function and the JS function are equivalent in function, ...