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package histogram
func hashString(s string) uint32 {
// fnv32 hash
const prime32 = 16777619
hash := uint32(2166136261)
for _, c := range []byte(s) {
hash *= prime32
hash ^= uint32(c)
}
return hash
}
// WithDefaultHash creates histogram with specified shardCount and
// reasonable sharding function.
func WithDefaultHash(shardsCount uint32) (*Histogram, error) {
return New(shardsCount, hashString)
}
// Default creates histogram with reasonable defaults.
func Default() *Histogram {
// We can safely ignore the error in this case
h, _ := WithDefaultHash(32)
return h
}
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