---
name: "std::__detail::_Default_ranged_hash"
section: "3cxx"
platform: "linux"
package: "libstdc++-10-doc"
version: "10.2.1-6"
release: "Debian 11 (Bullseye)"
platforms: ["linux"]
url: "https://new.carta.tech/std::__detail::_Default_ranged_hash"
---

# std::\_\_detail::\_Default\_ranged\_hash(3cxx)

Default ranged hash function H. In principle it should be a function object composed from objects of type H1 and H2 such that h(k, N) = h2(h1(k), N), but that would mean making extra copies of h1 and h2. So instead we'll just use a tag to tell class template hashtable to do that composition.

## NAME

std::\_\_detail::\_Default\_ranged\_hash - Default ranged hash function H. In principle it should be a function object composed from objects of type H1 and H2 such that h(k, N) = h2(h1(k), N), but that would mean making extra copies of h1 and h2. So instead we'll just use a tag to tell class template hashtable to do that composition.

## SYNOPSIS

## Detailed Description

Default ranged hash function H. In principle it should be a function object composed from objects of type H1 and H2 such that h(k, N) = h2(h1(k), N), but that would mean making extra copies of h1 and h2. So instead we'll just use a tag to tell class template hashtable to do that composition.

Definition at line 441 of file hashtable\_policy.h.

## Author

Generated automatically by Doxygen for libstdc++ from the source code.