---
title: vDSP_vabs
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.4+]
path: kernel/1532216-vdsp_vabs
---

# vDSP_vabs

Calculates the absolute value of each element in the supplied single-precision vector using the specified stride.

## Declaration

```occ
void vDSP_vabs(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Stride __IC, vDSP_Length __N);
```

## Parameters

- `__A`: The single-precision real input vector.
- `__IA`: The stride for input vector A.
- `__C`: The single-precision real output vector.
- `__IC`: The stride for output vector C.
- `__N`: The number of elements to process.

## Discussion

Discussion This function performs the following operation to write the absolute values of the input elements to the corresponding output elements: