[XERCESC-2206] Use char16_t and unicode literals to replace various XMLCh types

• Type: Improvement
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: 4.0.0
• Component/s: Miscellaneous
• Assignee: Unassigned
• Reporter: Roger Leigh
• Created: 10/Jun/20 11:57
• Updated: 26/Apr/23 21:06

Description

Currently, XMLCh can be a variety of 16-bit types depending upon the platform, from wchar_t, uint16_t, unsigned short, to char16_t.

To reduce the platform-specific variability, fix XMLCh to char16_t, and also permit the use of u"" unicode string literals in the codebase. This will allow replacement of Unicode constants with direct use of literals.

This will additionally reduce the size of the test matrix with only one character variant to test.