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# docs.GL

GLSL 4
GLSL ES 3

# usubBorrow

## Name

usubBorrow — subtract unsigned integers and generate borrow

## Declaration

`genUType usubBorrow(` | genUType x,
| genUType y,
| out genUType borrow`)`;

## Parameters

`x`

  Specifies the first vector to be used in the subtraction operation.

`y`

  Specifies the second vector to be used in the subtraction operation.

`borrow`

  Specifies the variable to receive the borrow output of the difference.

## Description

`usubBorrow` subtracts two 32-bit unsigned integer variables (scalars or vectors) and generates a 32-bit unsigned integer result, along with a borrow output. The result is the difference of `x` and `y` if non-negative, or 2 32 plus that difference otherwise. The value `borrow` is set to 0 if `x` ≥ `y` and to 1 otherwise.

## Version Support

| OpenGL ES Shading Language Version
--- | ---
Function Name | 1.00 | 3.00 | 3.10
`usubBorrow` | - | - | ✔

## See Also

uaddCarry

## 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. https://opencontent.org/openpub/.

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