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Function std.checkedint.Throw.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), throws a Throw exception.
Otherwise, the three-state result is returned (positive if lhs > rhs,
negative if lhs < rhs, 0 otherwise).
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
For correct comparisons, returns a positive integer if lhs >
rhs, a negative integer if lhs < rhs, 0 if the two are equal.
Throws
Upon a mistaken comparison such as int(-1) < uint(0), the
function never returns because it throws a Throw exception.
Authors
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.