---
name: "__gnu_cxx::_Project2nd"
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/__gnu_cxx::_Project2nd"
---

# \_\_gnu\_cxx::\_Project2nd(3)

## NAME

\_\_gnu\_cxx::\_Project2nd -

## SYNOPSIS

Inherits **binary\_function\< \_Arg1, \_Arg2, \_Arg2 \>**.

Inherited by **project2nd**.

## Detailed Description

### template\<class \_Arg1, class \_Arg2\> struct \_\_gnu\_cxx::\_Project2nd\< \_Arg1, \_Arg2 \>

Definition at line 218 of file ext/functional.

### Public Types

typedef \_Arg1 **first\_argument\_type**\
 typedef \_Result **result\_type**\
 typedef \_Arg2 **second\_argument\_type**\

### Public Member Functions

\_Arg2 **operator()** (const \_Arg1 &, const \_Arg2 &\_\_y) const\

## Member Typedef Documentation

### typedef \_Arg1 first\_argument\_type` [inherited]`

the type of the first argument

Definition at line 116 of file stl\_function.h.

### typedef \_Result result\_type` [inherited]`

type of the return type

Reimplemented in **\_Reference\_wrapper\_base\_impl\< true, true, \_Tp \>**.

Definition at line 120 of file stl\_function.h.

### typedef \_Arg2 second\_argument\_type` [inherited]`

(no surprises here) the type of the second argument

Definition at line 119 of file stl\_function.h.

## Author

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