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Add predicate support for algorithm.comparison.equal

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This commit is contained in:
Eugen Wissner 2018-09-17 19:17:39 +02:00
parent eb796e0ddf
commit b0dc7b59e5
2 changed files with 12 additions and 9 deletions
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9
source/tanya/algorithm/comparison.d
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@ -278,6 +278,7 @@ if (isForwardRange!Range && isOrderingComparable!(ElementType!Range))
* If the ranges have different lengths, they aren't equal.
*
* Params:
* pred = Predicate used to compare individual element pairs.
* R1 = First range type.
* R2 = Second range type.
* r1 = First range.
@ -286,8 +287,10 @@ if (isForwardRange!Range && isOrderingComparable!(ElementType!Range))
* Returns: $(D_KEYWORD true) if both ranges are equal, $(D_KEYWORD false)
* otherwise.
*/
bool equal(R1, R2)(R1 r1, R2 r2)
if (allSatisfy!(isInputRange, R1, R2) && is(typeof(r1.front == r2.front)))
bool equal(alias pred = (auto ref a, auto ref b) => a == b, R1, R2)
(R1 r1, R2 r2)
if (allSatisfy!(isInputRange, R1, R2)
&& is(typeof(pred(r1.front, r2.front)) == bool))
{
static if (isDynamicArray!R1
&& is(R1 == R2)
@ -306,7 +309,7 @@ if (allSatisfy!(isInputRange, R1, R2) && is(typeof(r1.front == r2.front)))
}
for (; !r1.empty && !r2.empty; r1.popFront(), r2.popFront())
{
if (r1.front != r2.front)
if (!pred(r1.front, r2.front))
{
return false;
}

4
source/tanya/container/array.d
View File

@ -1554,14 +1554,14 @@ struct Array(T)
{
struct MutableEqualsStruct
{
int opEquals(typeof(this) that) @nogc nothrow pure @safe
bool opEquals(typeof(this) that) @nogc nothrow pure @safe
{
return true;
}
}
struct ConstEqualsStruct
{
int opEquals(const typeof(this) that) const @nogc nothrow pure @safe
bool opEquals(const typeof(this) that) const @nogc nothrow pure @safe
{
return true;
}