---
title: Unicode Matching Masks
framework: Core Services
role: containerSymbol
role_heading: Enumeration
platforms: [Mac Catalyst 17.0+, macOS 10.0+]
path: coreservices/1433554-unicode_matching_masks
---

# Unicode Matching Masks

Used to set or test for Unicode matching flags.

## Declaration

```occ
enum : unsigned int {
    ...
};
```

## Topics

### Constants

- [kUnicodeMatchUnicodeBaseMask](coreservices/1433554-unicode_matching_masks/kunicodematchunicodebasemask.md)
- [kUnicodeMatchUnicodeVariantMask](coreservices/1433554-unicode_matching_masks/kunicodematchunicodevariantmask.md)
- [kUnicodeMatchUnicodeFormatMask](coreservices/1433554-unicode_matching_masks/kunicodematchunicodeformatmask.md)
- [kUnicodeMatchOtherBaseMask](coreservices/1433554-unicode_matching_masks/kunicodematchotherbasemask.md)
- [kUnicodeMatchOtherVariantMask](coreservices/1433554-unicode_matching_masks/kunicodematchothervariantmask.md)
- [kUnicodeMatchOtherFormatMask](coreservices/1433554-unicode_matching_masks/kunicodematchotherformatmask.md)

## See Also

### Feature Selectors

- [Conversion Flags](coreservices/1433583-conversion_flags.md)
- [Conversion Masks](coreservices/1433493-conversion_masks.md)
- [Directionality Flags](coreservices/1433491-directionality_flags.md)
- [Directionality Masks](coreservices/1433620-directionality_masks.md)
- [Unicode Converter Flags](coreservices/1400304-unicode_converter_flags.md)
- [Unicode Converter Masks](coreservices/1400367-unicode_converter_masks.md)
- [Unicode Fallback Sequencing Flag](coreservices/1433597-unicode_fallback_sequencing_flag.md)
- [Unicode Fallback Sequencing Masks](coreservices/1433622-unicode_fallback_sequencing_mask.md)
- [Unicode Matching Flags](coreservices/1433572-unicode_matching_flags.md)
- [Fallback Handler Selectors](coreservices/1433507-fallback_handler_selectors.md)