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Function std.typecons.Tuple.opCmp
Comparison for ordering.
int opCmp(R)
(
R rhs
)
if (areCompatibleTuples!(typeof(this), R, "<"));
int opCmp(R)
(
R rhs
) const
if (areCompatibleTuples!(typeof(this), R, "<"));
Parameters
Name | Description |
---|---|
rhs | The Tuple to compare against. It must meet the criteria
for comparison between Tuple s. |
Returns
For any values v1
on the right-hand side and v2
on the
left-hand side:
- A negative integer if the expression
v1 < v2
is true. - A positive integer if the expression
v1 > v2
is true. - 0 if the expression
v1 == v2
is true.
Example
The first v1
for which v1 > v2
is true determines
the result. This could lead to unexpected behaviour.
auto tup1 = tuple(1, 1, 1);
auto tup2 = tuple(1, 100, 100);
assert(tup1 < tup2);
//Only the first result matters for comparison
tup1[0] = 2;
assert(tup1 > tup2);
Authors
Andrei Alexandrescu, Bartosz Milewski, Don Clugston, Shin Fujishiro, Kenji Hara
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.