func hashInt32(x int) int {
x = ((x >> 16) ^ x) * 0x45d9f3b
x = ((x >> 16) ^ x) * 0x45d9f3b
x = ((x >> 16) ^ x)
return x
}
今天看到一个int的hash函数，地址http://stackoverflow.com/questions/664014/what-integer-hash-function-are-good-that-accepts-an-integer-hash-key
原文：http://my.oschina.net/purely/blog/407146