---
name: "BIN_fnc_isExtensionError"
type: function
status: ok
groups: ["Diagnostic"]
arma3_since: "1.94"
locality: {"argument": null, "effect": null, "server_exec": false}
source: https://community.bistudio.com/wiki/BIN_fnc_isExtensionError
revid: 309543
updated: 2022-05-05T12:06:57Z
---

# BIN_fnc_isExtensionError

*Function · Diagnostic · Arma 3 v1.94*

## Description

Returns true and displays description of the error from extension if there was an error. When extension returns negative number (usually -1), it is considered an indication of some sort of error, in which case string output should contain the description of the error.

> [!NOTE]
> This content is exclusive to the Arma 3 Contact Expansion.

## Syntax

*syntax inferred from the function header*

```sqf
Extension call BIN_fnc_isExtensionError
```

**Parameters:**

- `Extension` — (arg version) output in format [<string>, <number>, <number>]

**Returns:** BOOL - true if error

## Function header

The comment at the top of the function's file in the game; this page's params, syntax, returns, description come from it.

```sqf
/*
    Killzone_Kid

Description:
    Returns true and displays description of the error from extension if there was an error.
    When extension returns negative number (usually -1), it is considered an indication of some sort of error,
    in which case string output should contain the description of the error.

Parameter(s):
    Extension (arg version) output in format [<string>, <number>, <number>]

Returns:
    BOOL - true if error
*/
```

<sub>Source: [BI Community Wiki — BIN fnc isExtensionError](https://community.bistudio.com/wiki/BIN_fnc_isExtensionError) (revision 309543).</sub>