---
name: "std::tr1::__sfinae_types"
section: "3"
platform: "linux"
package: "libstdc++6-4.1-doc"
version: "4.1.1-21"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/std::tr1::__sfinae_types"
---

# std::tr1::\_\_sfinae\_types(3)

## NAME

std::tr1::\_\_sfinae\_types -

## SYNOPSIS

Inherited by **\_\_in\_array**, **\_\_is\_base\_of\_helper**, **\_\_is\_convertible\_simple**, **\_\_is\_union\_or\_class\_helper**, **\_Derives\_from\_binary\_function**, **\_Derives\_from\_unary\_function**, and **\_Has\_result\_type\_helper**` [private]`.

## Detailed Description

Definition at line 46 of file type\_traits.

### Public Types

typedef char **\_\_one**\

### Classes

struct **\_\_two**\

## Author

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