isnan - OpenGL ES 3 Reference Pages

## Name

isnan — determine whether the parameter is a number

## Declaration

`genBType isnan(` | genType x`)`;

## Parameters

`x`

  Specifies the value to test for NaN.

## Description

For each element i of the result, `isnan` returns `true` if `x`[i] is posititve or negative floating point NaN (Not a Number) and false otherwise. NaNs may not be supported by the implementation, in which case `isnan` returns false.

## Version Support

| OpenGL ES Shading Language Version
--- | ---
Function Name | 1.00 | 3.00
isnan (genType) | - | ✔

## See Also

isinf

## Copyright

Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.