# ismex

Check for the existence of a mex function.

## Syntax

* tf = ismex(name)

## Input argument

* name - a string: mex function name.

## Output argument

* tf - a logical: true if mex exists.

## Description

**ismex** checks for the existence of a mex function.

## Example

```matlab
ismex('isbuiltin')
ismex('exist')
ismex('exist')
```

## See also

[isbuiltin](isbuiltin), [ismacro](ismacro).

## History

| Version | Description     |
| ------- | --------------- |
| 1.0.0   | initial version |

## Author

Allan CORNET
