---
name: "__gnu_profile::__trace_hash_func"
section: "3cxx"
platform: "linux"
package: "libstdc++-9-doc"
version: "9.3.0-22"
release: "Debian 11 (Bullseye)"
platforms: ["linux"]
url: "https://new.carta.tech/__gnu_profile::__trace_hash_func"
---

# \_\_gnu\_profile::\_\_trace\_hash\_func(3cxx)

Hash performance instrumentation producer.

## NAME

\_\_gnu\_profile::\_\_trace\_hash\_func - Hash performance instrumentation producer.

## SYNOPSIS

Inherits **\_\_gnu\_profile::\_\_trace\_base\< \_\_hashfunc\_info, \_\_hashfunc\_stack\_info \>**.

### Public Member Functions

**\_\_hashfunc\_info** \* **\_\_add\_object** (\_\_stack\_t \_\_stack)\
 void **\_\_collect\_warnings** (\_\_warning\_vector\_t &\_\_warnings)\
 void **\_\_destruct** (**\_\_hashfunc\_info** \*\_\_obj\_info, std::size\_t \_\_chain, std::size\_t \_\_accesses, std::size\_t \_\_hops)\
 void **\_\_free** ()\
 void **\_\_retire\_object** (**\_\_hashfunc\_info** \*\_\_info)\
 void **\_\_write** (FILE \*\_\_f)\

### Protected Attributes

const char \* **\_\_id**\

## Detailed Description

Hash performance instrumentation producer.

Definition at line 95 of file profiler\_hash\_func.h.

## Author

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