---
title: utf8_encodelen
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 15.0+]
path: kernel/4395366-utf8_encodelen
---

# utf8_encodelen

## Declaration

```occ
size_t utf8_encodelen(const u_int16_t *ucsp, size_t ucslen, u_int16_t altslash, int flags);
```