---
name: "std::_Placeholder"
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::_Placeholder"
---

# std::\_Placeholder(3)

The type of placeholder objects defined by libstdc++.

## NAME

std::\_Placeholder\< \_Num \> - The type of placeholder objects defined by libstdc++.

## SYNOPSIS

\#include \<functional\>

## Detailed Description

### template\<int \_Num\>

struct std::\_Placeholder\< \_Num \>"The type of placeholder objects defined by libstdc++.

**Since**

C++11

## Author

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