---
title: vDSP_ctoz
framework: kernel
role: symbol
role_heading: Function
path: kernel/1579975-vdsp_ctoz
---

# vDSP_ctoz

Copies the contents of an interleaved complex vector C to a split complex vector Z; single precision.

## Declaration

```occ
void vDSP_ctoz(const DSPComplex *__C, vDSP_Stride __IC, const DSPSplitComplex *__Z, vDSP_Stride __IZ, vDSP_Length __N);
```

## Parameters

- `__C`: Single-precision interleaved complex input vector.
- `__IC`: Stride for C; must be an even number.
- `__Z`: Single-precision split-complex output vector.
- `__IZ`: Stride for Z.
- `__N`: The number of elements to process.

## Discussion

Discussion For best performance, C, Z.realp, and Z.imagp should be 16-byte aligned. This function performs the following operations: for (n = 0; n < N; ++n) {   Z->realp[n*IZ] = C[n*IC/2].real;   Z->imagp[n*IZ] = C[n*IC/2].imag; }  See also functionsvDSP_ztoc and vDSP_ztocD.