---
name: "std::invocable"
section: "3cxx"
platform: "linux"
package: "libstdc++-12-doc"
version: "12.4.0-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/std::invocable/3cxx"
---

# std::invocable(3cxx)

\[concept.invocable\], concept invocable

## NAME

std::invocable - \[concept.invocable\], concept invocable

## SYNOPSIS

`#include <concepts>`

## Concept definition

```
template<typename _Fn, typename... _Args>
concept std::invocable =  is_invocable_v<_Fn, _Args...>
```

## Detailed Description

\[concept.invocable\], concept invocable

## Author

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