---
name: "std::predicate"
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::predicate"
---

# std::predicate(3)

\[concept.predicate\], concept predicate

## NAME

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

## SYNOPSIS

\#include \<concepts\>

## Concept definition

```
    template<typename _Fn, typename... _Args>
    concept predicate = regular_invocable<_Fn, _Args...>
      && __detail::__boolean_testable<invoke_result_t<_Fn, _Args...>>
```

## Detailed Description

\[concept.predicate\], concept predicate

## Author

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