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Function std.experimental.checkedint.Warn.hookOpEquals
Called automatically upon a comparison for equality. In case of an Erroneous
comparison (one that would make a signed negative value appear equal to an
unsigned positive value), writes a warning message to stderr as a side
effect.
bool hookOpEquals(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 the function returns the built-in result of lhs ==
rhs.
Example
auto x = checked!Warn(-42);
// Passes
writeln(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.