View source code
Display the source code in std/conv.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.
Function std.conv.signed
Returns the corresponding signed value for x
(e.g. if x
has type
uint
, it returns cast(int) x
). The advantage compared to the cast
is that you do not need to rewrite the cast if x
later changes type
(e.g from uint
to ulong
).
auto signed(T)
(
T x
)
if (isIntegral!T);
Note that the result is always mutable even if the original type was const
or immutable. In order to retain the constness, use Signed
.
Example
import std .traits : Signed;
immutable uint u = 42;
auto s1 = signed(u); //not qualified
static assert(is(typeof(s1) == int));
Signed!(typeof(u)) s2 = signed(u); //same qualification
static assert(is(typeof(s2) == immutable int));
immutable s3 = signed(u); //explicitly qualified
Authors
Walter Bright, Andrei Alexandrescu, Shin Fujishiro, Adam D. Ruppe, Kenji Hara
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.