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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
License
Copyright © 1999-2025 by the D Language Foundation | Page generated by ddox.