---
name: "std::tr1::is_placeholder"
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::is_placeholder/3cxx"
---

# std::tr1::is\_placeholder(3cxx)

Determines if the given type \_Tp is a placeholder in a bind() expression and, if so, which placeholder it is. \[TR1 3.6.2\].

## NAME

std::tr1::is\_placeholder -

Determines if the given type \_Tp is a placeholder in a **bind()** expression and, if so, which placeholder it is. \[TR1 3.6.2\].

## SYNOPSIS

### Static Public Attributes

static const int **value**\

## Detailed Description

### template\<typename \_Tp\> struct std::tr1::is\_placeholder\< \_Tp \>

Determines if the given type \_Tp is a placeholder in a **bind()** expression and, if so, which placeholder it is. \[TR1 3.6.2\].

Definition at line 816 of file tr1\_impl/functional.

## Author

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