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Function std.ascii.isAlphaNum
Prototype
bool isAlphaNum( dchar c ) pure nothrow @nogc @safe;
Parameters
Name | Description |
---|---|
c | The character to test. |
Returns
Whether
is a letter or a number (0..9, a..z, A..Z).
c
Example
assert( isAlphaNum('A')); assert( isAlphaNum('1')); assert(!isAlphaNum('#')); // N.B.: does not return true for non-ASCII Unicode alphanumerics: assert(!isAlphaNum('รก'));
Authors
Walter Bright and Jonathan M Davis