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.toLower
Converts an ASCII letter to lowercase.
Prototype
auto toLower(C)( C c ) if (is(C : dchar));
Parameters
| Name | Description |
|---|---|
| c | A character of any type that implicitly converts to dchar.
In the case where it's a built-in type, or an enum of a built-in type,
Unqual!(OriginalType!C) is returned, whereas if it's a user-defined
type, dchar is returned. |
Returns
The corresponding lowercase letter, if cuppercase
ASCII character, otherwise c
Example
assert(toLower('a') == 'a');
assert(toLower('A') == 'a');
assert(toLower('#') == '#');
// N.B.: Non-ASCII Unicode uppercase letters are not converted.
assert(toLower('Á') == 'Á');
Authors
Walter Bright and Jonathan M Davis