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I have seen this in a java code.
int n = 300 //passed through a function
size = (n + 31) >> 5 //size = 10
what could be the significance of 5?
What is the significance of 31 //should something to do with int size (31 bit + 1 sign)
Thanks
The significance of 5 is that 32 = 2^5.
sets
sizetoceiling(n/32), which is the number of 32-bit integers needed to storenbit flags.The addition of 31 to
nis to make sure that the dividend is at least as large as the smallest multiple of 32 greater than or equal ton.