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Function `std.utf.isValidDchar`

Check whether the given Unicode code point is valid.


						
				bool isValidDchar
				(
				

				  dchar c
				

				) pure nothrow @nogc @safe;

Parameters

Name	Description
c	code point to check

Returns

true if and only if c is a valid Unicode code point

Note

'\uFFFE' and '\uFFFF' are considered valid by isValidDchar, as they are permitted for internal use by an application, but they are not allowed for interchange by the Unicode standard.

Example

assert( isValidDchar(cast(dchar) 0x41));
assert( isValidDchar(cast(dchar) 0x00));
assert(!isValidDchar(cast(dchar) 0xD800));
assert(!isValidDchar(cast(dchar) 0x11FFFF));

Authors

Walter Bright and Jonathan M Davis

License

Boost License 1.0.