For example, in PHP, how would I reverse the bits of the byte 11011111开发者_高级运维 to 11111011?If you have already the bits in the form of a string, use strrev.
I have a one 64-bit integer, which I need to rotate 90 degrees in 8 x 8 area (preferably with straight bit-manipulation). I cannot figure ou开发者_开发技巧t any handy algorithm for that. For instance,
An interesting problem I ran into today: wha开发者_运维百科t is the fastest way to count the number of 1s in an n-bit integer? Is it possible to beat O(n)?
I have to create a query that checks across several different columns, and if any of them have a 1, I want to return true.
I came up with this \"magic string\" to meet the ID3 tagging specification: The ID3v2 tag size is encoded with four bytes where the most significant bit (bit 7) is set to zero in every byte, making
I\'ve been studying C# and ran accross some familiar ground from my old work in C++. I never understood the reason for bitwise operators in a real application. I\'ve never used them and have never had
Let\'s say I want to bit shift i twice to the left and store the val开发者_StackOverflowue in f. f = i << 2;
Is there a built in functio开发者_Python百科n in python which will convert a binary string, for example \'111111111111\', to the two\'s complement integer -1? Two\'s complement subtracts off (1<<
This is almost certainly a very silly question, but for some reason I\'m having trouble with internet checksum calculations.All of the algorithms basically look something like this:
To allow for differen开发者_运维知识库t formatting options on a method that displays a news story, I\'ve created an enumeration that can be passed in to specify how it gets displayed.
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