View source code
Display the source code in std/functional.d from which this
page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a
Bugzilla issue.
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.
Template std.functional.partial
Partially applies fun by tying its first argument to arg.
template partial(alias fun, alias arg)
;
Contained Functions
Name | Description |
---|---|
partial |
Parameters
Name | Description |
---|---|
fun | A callable |
arg | The first argument to apply to fun |
Returns
A new function which calls fun
with arg
plus the passed parameters.
Example
int fun(int a, int b) { return a + b; }
alias fun5 = partial!(fun, 5);
writeln(fun5(6)); // 11
// Note that in most cases you'd use an alias instead of a value
// assignment. Using an alias allows you to partially evaluate template
// functions without committing to a particular type of the function.
Authors
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.