# mustBeInteger

Checks that value is integer or raise an error.

## Syntax

* mustBeInteger(var)
* mustBeInteger(var, argPosition)
* C++: void mustBeInteger(const ArrayOfVector& args, int argPosition)

## Input argument

* var - a variable: all supported types and classes that implement isnumeric, islogical, all, isreal, eq and floor methods.
* argPosition - a positive integer value: Position of input argument.

## Description

**mustBeInteger** checks that value is integer or raise an error.

## Example

```matlab
mustBeInteger(-1)
mustBeInteger(Inf)
```

## See also

[mustBeNumeric](mustbenumeric).

## History

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

## Author

Allan CORNET
