---
name: "__gnu_pbds::container_traits"
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/__gnu_pbds::container_traits"
---

# \_\_gnu\_pbds::container\_traits(3)

Container traits.

## NAME

\_\_gnu\_pbds::container\_traits\< Cntnr \> - Container traits.

## SYNOPSIS

\#include \<tag\_and\_trait.hpp\>

Inherits **\_\_gnu\_pbds::container\_traits\_base\< Cntnr::container\_category \>**.

### Public Types

enum { **order\_preserving**, **erase\_can\_throw**, **split\_join\_can\_throw**, **reverse\_iteration** }\
 typedef **container\_traits\_base**\< container\_category \> **base\_type**\
 typedef Cntnr::container\_category **container\_category**\
 typedef Cntnr **container\_type**\
 typedef base\_type::invalidation\_guarantee **invalidation\_guarantee**\

## Detailed Description

### template\<typename Cntnr\>

struct \_\_gnu\_pbds::container\_traits\< Cntnr \>"Container traits.

## Member Enumeration Documentation

### template\<typename Cntnr\> anonymous enum

**Enumerator**

- ***order\_preserving***

  True only if Cntnr objects guarantee storing keys by order.

- ***erase\_can\_throw***

  True only if erasing a key can throw.

- ***split\_join\_can\_throw***

  True only if split or join operations can throw.

- ***reverse\_iteration***

  True only reverse iterators are supported.

## Author

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