View source code
Display the source code in std/ascii.d from which this page was generated on
github.
Improve this page
Quickly fork, edit online, and submit a pull request for this page.
Requires a signed-in GitHub account. This works well for small changes.
If you'd like to make larger changes you may want to consider using
local clone.
Page wiki
View or edit the community-maintained wiki page associated with this page.
Function std.ascii.isHexDigit
Prototype
bool isHexDigit( dchar c ) pure nothrow @nogc @safe;
Parameters
| Name | Description |
|---|---|
| c | The character to test. |
Returns
Whether is a digit in base 16 (0..9, A..F, a..f).
c
Example
assert( isHexDigit('0'));
assert( isHexDigit('A'));
assert( isHexDigit('f')); // lowercase hex digits are accepted
assert(!isHexDigit('g'));
assert(!isHexDigit('G'));
assert(!isHexDigit('#'));
Authors
Walter Bright and Jonathan M Davis