---
name: "std::__has_iterator_category_helper"
section: "3cxx"
platform: "linux"
package: "libstdc++-4.8-doc"
version: "4.8.4-1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/std::__has_iterator_category_helper"
---

# std::\_\_has\_iterator\_category\_helper(3cxx)

## NAME

std::\_\_has\_iterator\_category\_helper\< \_Tp \> -

## SYNOPSIS

Inherits \_\_sfinae\_types.

### Static Public Attributes

static constexpr bool **value**\

## Detailed Description

### template\<typename \_Tp\>class std::\_\_has\_iterator\_category\_helper\< \_Tp \>

Traits class for iterators.

This class does nothing but define nested typedefs. The general version simply *forwards* the nested typedefs from the Iterator argument. Specialized versions for pointers and pointers-to-const provide tighter, more correct semantics.

Definition at line 142 of file stl\_iterator\_base\_types.h.

## Author

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