---
description: "Learn more about: FILENAME_MAX"
title: "FILENAME_MAX"
ms.date: "11/04/2016"
f1_keywords: ["FILENAME_MAX"]
helpviewer_keywords: ["FILENAME_MAX constant"]
ms.assetid: fe368d24-3f31-42d6-859c-cbd84f446ee5
---
# FILENAME_MAX

The maximum permissible length for a `filename` string buffer size.

## Syntax

```
#include <stdio.h>
```

## See also

[Path Field Limits](../c-runtime-library/path-field-limits.md)<br/>
[Global Constants](../c-runtime-library/global-constants.md)