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Function std.typecons.Tuple.opEquals
Comparison for equality. Two Tuple
s are considered equal
iff they fulfill the following criteria:
bool opEquals(R)
(
R rhs
)
if (areCompatibleTuples!(typeof(this), R, "=="));
bool opEquals(R)
(
R rhs
) const
if (areCompatibleTuples!(typeof(this), R, "=="));
bool opEquals(R...)
(
auto ref R rhs
)
if (R .length > 1 && areCompatibleTuples!(typeof(this), Tuple!R, "=="));
- Each
Tuple
is the same length. - For each type
T
on the left-hand side and each typeU
on the right-hand side, values of typeT
can be compared with values of typeU
. - For each value
v1
on the left-hand side and each valuev2
on the right-hand side, the expressionv1 == v2
is true.
Parameters
Name | Description |
---|---|
rhs | The Tuple to compare against. It must meeting the criteria
for comparison between Tuple s. |
Returns
true if both Tuple
s are equal, otherwise false.
Example
Tuple!(int, string) t1 = tuple(1, "test");
Tuple!(double, string) t2 = tuple(1.0, "test");
//Ok, int can be compared with double and
//both have a value of 1
writeln(t1); // t2
Authors
Andrei Alexandrescu, Bartosz Milewski, Don Clugston, Shin Fujishiro, Kenji Hara
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.