View source code
Display the source code in std/experimental/checkedint.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.experimental.checkedint.Warn.hookOpCmp
Called automatically upon a comparison for ordering using one of the
operators <, <=, >, or >=. In case the comparison is erroneous (i.e.
it would make a signed negative value appear greater than or equal to an
unsigned positive value), then a warning message is printed to stderr.
int hookOpCmp(Lhs, Rhs)
(
Lhs lhs,
Rhs rhs
);
Parameters
| Name | Description |
|---|---|
| lhs | The first argument of Checked, e.g. int if the left-hand side of
the operator is Checked!int |
| rhs | The right-hand side type involved in the operator |
Returns
In all cases, returns lhs < rhs ? -1 : lhs > rhs. The result
is not autocorrected in case of an erroneous comparison.
Example
auto x = checked!Warn(-42);
// Passes
assert(x <= -42);
// Passes but prints a warning
// assert(x <= uint(-42));
Authors
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.