---
name: "std::tr1::_Maybe_unary_or_binary_function"
section: "3cxx"
platform: "linux"
package: "libstdc++6-4.4-doc"
version: "4.4.5-8"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/std::tr1::_Maybe_unary_or_binary_function"
---

# std::tr1::\_Maybe\_unary\_or\_binary\_function(3cxx)

## NAME

std::tr1::\_Maybe\_unary\_or\_binary\_function -

## SYNOPSIS

## Detailed Description

### template\<typename \_Res, typename... \_ArgTypes\> struct std::tr1::\_Maybe\_unary\_or\_binary\_function\< \_Res, \_ArgTypes \>

Derives from **unary\_function or binary\_function, or perhaps nothing, depending on the number of arguments provided. The primary template is the basis case, which derives nothing.**

**Definition at line 509 of file tr1\_impl/functional.**

## Author

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