# Gh

Calls a function to aid custom user profiling.

## Syntax

Linux and macOS: | None

Windows: | /Gh

## Arguments

None

## Default

OFF | The compiler uses the default libraries.

## Description

This option calls the __penter function to aid custom user profiling. The prototype for __penter is not included in any of the standard libraries or Intel-provided libraries. You do not need to provide a prototype unless you plan to explicitly call __penter.

## IDE Equivalent

None

## Alternate Options

None

Parent topic: Profile Guided Optimization (PGO) Options

## See Also

GH compiler option