---
name: "__gnu_debug::type_info"
section: "3"
platform: "linux"
package: "gcc"
version: "16.2.1+r23+gd564253eb6c8-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/__gnu_debug::type_info"
---

# \_\_gnu\_debug::type\_info(3)

Part of RTTI.

## NAME

\_\_gnu\_debug::type\_info - Part of RTTI.

## SYNOPSIS

\#include \<typeinfo\>

### Public Member Functions

virtual **~type\_info** ()\
 virtual bool **\_\_do\_catch** (const type\_info \*\_\_thr\_type, void \*\*\_\_thr\_obj, unsigned \_\_outer) const\
 virtual bool **\_\_do\_upcast** (const \_\_cxxabiv1::\_\_class\_type\_info \*\_\_target, void \*\*\_\_obj\_ptr) const\
 virtual bool **\_\_is\_function\_p** () const\
 virtual bool **\_\_is\_pointer\_p** () const\
 bool **before** (const type\_info &\_\_arg) const noexcept\
 size\_t **hash\_code** () const noexcept\
 const char \* **name** () const noexcept\
 constexpr bool **operator==** (const type\_info &\_\_arg) const noexcept\

### Protected Member Functions

**type\_info** (const char \*\_\_n)\

### Protected Attributes

const char \* **\_\_name**\

## Detailed Description

Part of RTTI.

The type\_info class describes type information generated by an implementation.

## Constructor & Destructor Documentation

### virtual std::type\_info::~type\_info () \[virtual\]

Destructor first. Being the first non-inline virtual function, this controls in which translation unit the vtable is emitted. The compiler makes use of that information to know where to emit the runtime-mandated type\_info structures in the new-abi.

## Member Function Documentation

### bool std::type\_info::before (const type\_info & \_\_arg) const \[noexcept\]

Returns true if \*this precedes \_\_arg in the implementation's collation order.

### const char \* std::type\_info::name () const \[inline\], \[noexcept\]

Returns an *implementation-defined* byte string; this is not portable between compilers!

## Author

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