---
name: "std::tr2::bases"
section: "3"
platform: "linux"
package: "gcc"
version: "16.2.1+r23+gd564253eb6c8-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/std::tr2::bases"
---

# std::tr2::bases(3)

Sequence abstraction metafunctions for manipulating a typelist.

## NAME

std::tr2::bases\< \_Tp \> - Sequence abstraction metafunctions for manipulating a typelist.

## SYNOPSIS

\#include \<type\_traits\>

### Public Types

typedef **\_\_reflection\_typelist**\< \_\_bases(\_Tp)... \> **type**\

## Detailed Description

### template\<typename \_Tp\>

struct std::tr2::bases\< \_Tp \>"Sequence abstraction metafunctions for manipulating a typelist.

Enumerate all the base classes of a class. Form of a typelist.

## Author

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