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Function `std.ascii.isControl`


						
				bool isControl
				(
				

				  dchar c
				

				) pure nothrow @nogc @safe;

Parameters

Name	Description
c	The character to test.

Returns

Whether c is a control character.

Example

assert( isControl('\0'));
assert( isControl('\022'));
assert( isControl('\n')); // newline is both whitespace and control
assert(!isControl(' '));
assert(!isControl('1'));
assert(!isControl('a'));
assert(!isControl('#'));

// N.B.: non-ASCII Unicode control characters are not recognized:
assert(!isControl('\u0080'));
assert(!isControl('\u2028'));
assert(!isControl('\u2029'));

Authors

Walter Bright and Jonathan M Davis

License

Boost License 1.0.