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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...reverse(register unsigned int x)
{
x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2));
x = (((x & 0xf0f0f0f0) >> 4) | ((x & 0x0f0f0f0f) << 4));
x = (((x & 0xf...
What's the simplest way to test whether a number is a power of 2 in C++?
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Why is GHC so large/big?
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It's a bit silly really. Every library that comes with GHC is provided in no less than 4 flav...
Why does (1 in [1,0] == True) evaluate to False?
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What is the difference between map and flatMap and a good use case for each?
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jQuery - setting the selected value of a select control via its text description
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Is R's apply family more than syntactic sugar?
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The apply functions in R don't provide improved performance over other looping functions (e.g....
Get top n records for each group of grouped results
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Using switch statement with a range of value in each case?
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How can I remove a flag in C?
... the flag you want to unset. A Bitwise NOT inverts every bit (i.e. 0 => 1, 1 => 0).
flags = flags & ~MASK; or flags &= ~MASK;.
Long Answer
ENABLE_WALK = 0 // 00000000
ENABLE_RUN = 1 // 00000001
ENABLE_SHOOT = 2 // 00000010
ENABLE_SHOOTRUN = 3 // 00000011
value = ENABL...