7.5 Identifiers
Describes implementation-defined aspects of the Arm® C compiler and C library relating to identifiers, as required by the ISO C standard.
- Which additional multibyte characters may appear in identifiers and their correspondence to
universal character names (6.4.2).
-
Multibyte characters, whose UTF-8 decoded value falls within one of the ranges
in Appendix D of ISO/IEC 9899:2011 are allowed in identifiers and correspond to the
universal character name with the short identifier (as specified by ISO/IEC 10646)
having the same numeric value.
The dollar character $ is allowed in
identifiers.
- The number of significant initial characters in an identifier (5.2.4.1, 6.4.2).
- There is no limit on the number of significant initial characters in an
identifier.
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