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Function `std.ascii.isUpper`


						
				bool isUpper
				(
				

				  dchar c
				

				) pure nothrow @nogc @safe;

Parameters

Name	Description
c	The character to test.

Returns

Whether c is an uppercase ASCII letter (A .. Z).

Example

assert( isUpper('A'));
assert(!isUpper('a'));
assert(!isUpper('#'));

// N.B.: does not return true for non-ASCII Unicode uppercase letters
assert(!isUpper('á'));
assert(!isUpper('Á'));

Authors

Walter Bright and Jonathan M Davis

License

Boost License 1.0.