---
title: kUnicodeLooseMappingsMask
framework: Core Services
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 17.0+, macOS 10.0+]
path: coreservices/1433493-conversion_masks/kunicodeloosemappingsmask
---

# kUnicodeLooseMappingsMask

## Declaration

```occ
kUnicodeLooseMappingsMask = 1L << kUnicodeLooseMappingsBit
```

## Discussion

Discussion A mask that determines whether the Unicode Converter should use the loose-mapping portion of a mapping table for character mapping if the strict mapping portion of the table does not include a destination encoding equivalent for the source text element.  If you clear this flag, the converter will use only the strict equivalence portion.   If set this flag and a conversion for the source text element does not exist in the strict equivalence portion of the mapping table, then the converter uses the loose mapping section.