What is the fastest way to write a bitstream on x86/x86-64? (codeword <= 32bit) by writing a bitstream I refer to the process of concatenating variable bit-length symbols into a contiguous memory
There is some obvious stuff I feel I should understand h开发者_运维技巧ere, but I don:t: void main()
It\'s just a random thought. The two\'s complement of 100...(31 zeros) is also 100... So, the value must be 0. But we know that the binary representation of 0 is 000...
I have a (C++) std::map<int, MyObject*> that contains a couple of millions of objects of type MyObject*. The maximum number of objects that I can have, is around 100 millions. The key is the obj
For a specific need I am building a four byte integer out of four one byte chars, using nothing too special (on my little endian platform):
I was reading some code today by someone I consider to be a reasonable programmer, and I noticed they used a =~0 to set a loo开发者_StackOverflow中文版p quit variable.
Assuming I have the float 12345.6789 and I want to get the six least significant digits (i.e. 45.6789) as an int (i.e. 456789) using bit operations in python (v. 2.6).
I check开发者_Go百科ed out the SWAR algorithm (SIMD Within A Register) for reversing bit order of unsigned ints. Is there something similar for signed int?The algorithm only works on unsigned integers
I\'m trying to figure out how to calculate the lower 7 bits and 7-13 bits of two hex numbers. Here is some example c code, just need this in vb.net:
I constantly meet people using bitwise operators to do quick, easy and elegant things. I\'d like to learn some useful tricks. What are some of the most useful bitwis开发者_运维百科e operator cases?Con
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